Plant Definition–noun | 1. | any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that have more or less rigid cell walls containing cellulose, including vascular plants, mosses, liverworts, and hornworts: some classification schemes may include fungi, algae, bacteria, blue-green algae, and certain single-celled eukaryotes that have plantlike qualities, as rigid cell walls or photosynthesis. | | 2. | an herb or other small vegetable growth, in contrast with a tree or a shrub. | | 3. | a seedling or a growing slip, esp. one ready for transplanting. | | 4. | the equipment, including the fixtures, machinery, tools, etc., and often the buildings, necessary to carry on any industrial business: a manufacturing plant. | | 5. | the complete equipment or apparatus for a particular mechanical process or operation: the heating plant for a home. | | 6. | the buildings, equipment, etc., of an institution: the sprawling plant of the university. | | 7. | Slang. something intended to trap, decoy, or lure, as criminals. | | 8. | Slang. a scheme to trap, trick, swindle, or defraud. | | 9. | a person, placed in an audience, whose rehearsed or prepared reactions, comments, etc., appear spontaneous to the rest of the audience. | | 10. | a person placed secretly in a group or organization, as by a foreign government, to obtain internal or secret information, stir up discontent, etc. | | 11. | Theater
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. a line of dialogue, or a character, action, etc., introducing an idea or the
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me that will be further developed at a later point in the play: Afterward we remembered the suicide plant in the second act. | –verb (used with object) | 12. | to put or set in the ground for growth, as seeds, young trees, etc. | | 13. | to furnish or stock (land) with plants: to plant a section with corn. | | 14. | to establish or implant (ideas, principles, doctrines, etc.): to plant a love for learning in growing children. | | 15. | to introduce (a breed of animals) into a country. | | 16. | to deposit (young fish, or spawn) in a river, lake, etc. | | 18. | to insert or set firmly in or on the ground or some other body or surface: to plant posts along a road. | | 19. | Theater. to insert or place (an idea, person, or thing) in a play. | | 21. | to place with great force, firmness, or determination: He planted himself in the doorway as if daring us to try to enter. He planted a big kiss on his son's cheek. | | 22. | to station; post: to plant a police officer on every corner. | | 23. | to locate; situate: Branch stores are planted all over. | | 24. | to establish (a colony, city, etc.); found. | | 25. | to settle (persons), as in a colony. | | 26. | to say or place (something) in order to obtain a desired result, esp. one that will seem spontaneous: The police planted the story in the newspaper in order to trap the thief. | | 27. | Carpentry. to nail, glue, or otherwise attach (a molding or the like) to a surface. | | 28. | to place (a person) secretly in a group to function as a spy or to promote discord. | | 29. | Slang. to hide or conceal, as stolen goods. | | From Dictionary
Light Definition–noun | 1. | something that makes things visible or affords illumination: All colors depend on light. | | 2. | Physics. | a. | Also called luminous energy, radiant energy. electromagnetic radiation to which the organs of sight react, ranging in wavelength from about 400 to 700 nm and propagated at a speed of 186,282 mi./sec (299,972 km/sec), considered variously as a wave, corpuscular, or quantum phenomenon. | | b. | a similar form of radiant energy that does not affect the retina, as ultraviolet or infrared rays. | | | 3. | the sensation produced by stimulation of the organs of sight. | | 4. | an illuminating agent or source, as the sun, a lamp, or a beacon. | | 5. | the radiance or illumination from a particular source: the light of a candle. | | 6. | the illumination from the sun; daylight: We awoke at the first light. | | 7. | daybreak or dawn: when light appeared in the east. | | 8. | daytime: Summer has more hours of light. | | 9. | a particular light or illumination in which an object seen takes on a certain appearance: viewing the portrait in dim light. | | 10. | a device for or means of igniting, as a spark, flame, or match: Could you give me a light? | | 11. | a traffic light: Don't cross till the light changes. | | 12. | the aspect in which a thing appears or is regarded: Try to look at the situation in a more cheerful light. | | 13. | the state of being visible, exposed to view, or revealed to public notice or knowledge; limelight: Stardom has placed her in the light. | | 14. | a person who is an outstanding leader, celebrity, or example; luminary: He became one of the leading lights of Restoration drama. | | 15. | Art. | a. | the effect of light falling on an object or scene as represented in a picture. | | b. | one of the brightest parts of a picture. | |
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| 16. | a gleam or sparkle, as in the eyes. | | 17. | a measure or supply of light; illumination: The wall cuts off our light. | | 18. | spiritual illumination or awareness; enlightenment. | | 19. | Architecture. | a. | Also called day. one compartment of a window or window sash. | | b. | a window, esp. a small one. | | | 20. | mental insight; understanding. | | 21. | lights, the information, ideas, or mental capacities possessed: to act according to one's lights. | | 23. | Archaic. the eyesight. | –adjective | 24. | having light or illumination; bright; well-lighted: the lightest room in the entire house. | | 25. | pale, whitish, or not deep or dark in color: a light blue. | | 26. | (of coffee or tea) containing enough milk or cream to produce a light color. | –verb (used with object) | 27. | to set burning, as a candle, lamp, fire, match, or cigarette; kindle; ignite. | | 28. | to turn or switch on (an electric light): One flick of the master switch lights all the lamps in the room. | | 29. | to give light to; furnish with light or illumination: The room is lighted by two large chandeliers. | | 30. | to make (an area or object) bright with or as if with light (often fol. by up): Hundreds of candles lighted up the ballroom. | | 31. | to cause (the face, surroundings, etc.) to brighten, esp. with joy, animation, or the like (often fol. by up): A smile lit up her face. Her presence lighted up the room. | | 32. | to guide or conduct with a light: a candle to light you to bed. | –verb (used without object) | 33. | to take fire or become kindled: The damp wood refused to light. | | 34. | to ignite a cigar, cigarette, or pipe for purposes of smoking (usually fol. by up): He took out a pipe and lighted up before
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speaking. | | 35. | to become illuminated when switched on: This table lamp won't light. | | 36. | to become bright, as with light or color (often fol. by up): The sky lights up at sunset. | | 37. | to brighten with animation or joy, as the face or eyes (often fol. by up). | —Idioms | 38. | bring to light, to discover or reveal: The excavations brought to light the remnants of an ancient civilization. | | 39. | come to light, to be discovered or revealed: Some previously undiscovered letters have lately come to light. | | 40. | hide one's light under a bushel, to conceal or suppress one's talents or successes. | | 41. | in a good (or bad) light, under favorable (or unfavorable) circumstances: She worshiped him, but then she'd only seen him in a good light. | | 42. | in (the) light of, taking into account; because of; considering: It was necessary to review the decision in the light of recent developments. | | 43. | light at the end of the tunnel, a prospect of success, relief, or redemption: We haven't solved the problem yet, but we're beginning to see light at the end of the tunnel. | | 44. | see the light, | a. | to come into existence or being. | | c. | to begin to accept or understand a point of view one formerly opposed: Her father was opposed to her attending an out-of-town college, but he finally saw the light. | | | 45. | shed or throw light on, to clarify; clear up: His deathbed confession threw light on a mystery of long standing. | | From Dictionary
Related topics from Britannicagrowth Of all the physical factors, light plays the best understood and most dramatic role. Many of the effects of light on plant growth are obvious and direct. Light energy is the driving force for ...
excretion Plants are not generally considered to possess special mechanisms of elimination. Photosynthetic activities of green plants, in the presence of light, produce oxygen, which diffuses out through ...
eastern Africa Vegetation types mirror the rainfall zones, starting with scanty plant cover in the arid and semiarid areas, where infrequent succulents and stunted thornbushes survive the dry seasons and where the ...
horticulture Light has a tremendous effect on plant growth. It provides energy for photosynthesis, the process by which plants, with the aid of the pigment chlorophyll, synthesize carbon compounds from water and ...
Business and Industry Review The end of the Cold War, combined with a worldwide recession, had a negative impact on the light metals industry. The primary light metals titanium and aluminum suffered most owing to large excesses ...
food preservation Light influences a number of chemical reactions that lead to spoilage of foods. These light-induced reactions include the destruction of chlorophyll (the photosynthetic pigment that gives plants ...
photosynthesis As has been mentioned, the complex mechanism of photosynthesis includes a photochemical, or light-dependent, stage and an enzymatic, or dark, stage that involves chemical reactions. These stages can ...
seed and fruit Many seeds are insensitive to light, but in a number of species germination is stimulated or inhibited by exposure to continuous or short periods of illumination. So stimulated are many grasses, ...
seed and fruit Laboratory experiments and field observations indicate that light is a main controller of seed dormancy in a wide array of species. The absence of light, for example, was found in one study to be ...
Edison, Thomas Alva Another offshoot of the carbon experiments reached fruition sooner. Samuel Langley, Henry Draper, and other American scientists needed a highly sensitive instrument that could be used to measure ...
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Citing slow economy, PPL drops expansion plan
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