plant, works, industrial plant (noun)

buildings for carrying on industrial labor

"they built a large plant to manufacture automobiles"

plant, flora, plant life (noun)

(botany) a living organism lacking the power of locomotion

plant (noun)

an actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience

plant (verb)

something planted secretly for discovery by another

"the police used a plant to trick the thieves"; "he claimed that the evidence against him was a plant"

plant, set (verb)

put or set (seeds, seedlings, or plants) into the ground

"Let's plant flowers in the garden"

implant, engraft, embed, imbed, plant (verb)

fix or set securely or deeply

"He planted a knee in the back of his opponent"; "The dentist implanted a tooth in the gum"

establish, found, plant, constitute, institute (verb)

set up or lay the groundwork for

"establish a new department"

plant (verb)

place into a river

"plant fish"

plant (verb)

place something or someone in a certain position in order to secretly observe or deceive

"Plant a spy in Moscow"; "plant bugs in the dissident's apartment"

plant, implant (verb)

put firmly in the mind

"Plant a thought in the students' minds"

Plant

Plants, also called green plants, are living organisms of the kingdom Plantae including such multicellular groups as flowering plants, conifers, ferns and mosses, as well as, depending on definition, the green algae, but not red or brown seaweeds like kelp, nor fungi or bacteria. Green plants have cell walls with cellulose and characteristically obtain most of their energy from sunlight via photosynthesis using chlorophyll contained in chloroplasts, which gives them their green color. Some plants are parasitic and have lost the ability to produce normal amounts of chlorophyll or to photosynthesize. Plants are also characterized by sexual reproduction, modular and indeterminate growth, and an alternation of generations, although asexual reproduction is common, and some plants bloom only once while others bear only one bloom. Precise numbers are difficult to determine, but as of 2010, there are thought to be 300–315 thousand species of plants, of which the great majority, some 260–290 thousand, are seed plants. Green plants provide most of the world's molecular oxygen and are the basis of most of the earth's ecologies, especially on land. Plants described as grains, fruits and vegetables form mankind's basic foodstuffs, and have been domesticated for millennia. Plants serve as ornaments and, until recently and in great variety, they have served as the source of most medicines and drugs. Their scientific study is known as botany.

Plant

Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ability to produce normal amounts of chlorophyll or to photosynthesize, but still have flowers, fruits, and seeds. Plants are characterized by sexual reproduction and alternation of generations, although asexual reproduction is also common. There are about 320,000 known species of plants, of which the great majority, some 260,000–290,000, produce seeds. Green plants provide a substantial proportion of the world's molecular oxygen, and are the basis of most of Earth's ecosystems. Plants that produce grain, fruit, and vegetables also form basic human foods and have been domesticated for millennia. Plants have many cultural and other uses, as ornaments, building materials, writing material and, in great variety, they have been the source of medicines and psychoactive drugs. The scientific study of plants is known as botany, a branch of biology.