1. (noun)root (botany) the usually undergroundorgan that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground
2. (noun)beginning, origin, root, rootage, source the place where something begins, where it springs into being "the Italian beginning of the Renaissance"; "Jupiter was the origin of the radiation"; "Pittsburgh is the source of the Ohio River"; "communism's Russian root"
3. (noun)root, root word, base, stem, theme, radical (linguistics) the form of a word after all affixes are removed "thematic vowels are part of the stem"
4. (noun)root a number that, when multiplied by itself some number of times, equals a givennumber
12. (verb)rout, root, rootle dig with the snout "the pig was rooting for truffles"
13. (verb)settle, root, take root, steady down, settle down become settled or established and stable in one's residence or lifestyle "He finally settled down"
2. (noun)root the descending, and commonly branching, axis of a plant, increasing in length by growth at its extremity only, not divided into joints, leafless and without buds, and having for its offices to fix the plant in the earth, to supply it with moisture and soluble matters, and sometimes to serve as a reservoir of nutriment for futuregrowth. A true root, however, may never reach the ground, but may be attached to a wall, etc., as in the ivy, or may hang loosely in the air, as in some epiphytic orchids
3. (noun)root an edible or esculent root, especially of such plants as produce a single root, as the beet, carrot, etc.; as, the rootcrop
4. (noun)root that which resembles a root in position or function, esp. as a source of nourishment or support; that from which anything proceeds as if by growth or development; as, the root of a tooth, a nail, a cancer, and the like
5. (noun)root an ancestor or progenitor; and hence, an early race; a stem
6. (noun)root a primitiveform of speech; one of the earliest terms employed in language; a word from which other words are formed; a radix, or radical
7. (noun)root the cause or occasion by which anything is brought about; the source
8. (noun)root that factor of a quantity which when multiplied into itself willproduce that quantity; thus, 3 is a root of 9, because 3 multiplied into itself produces 9; 3 is the cuberoot of 27
9. (noun)root the fundamentaltone of any chord; the tone from whose harmonics, or overtones, a chord is composed
10. (noun)root the lowest place, position, or part
11. (noun)root the time which to reckon in making calculations
12. (verb)root to turn up the earth with the snout, as swine
14. (verb)root to turn up or to dig out with the snout; as, the swineroots the earth
15. (verb)root to fix the root; to enter the earth, as roots; to takeroot and begin to grow
16. (verb)root to be firmly fixed; to be established
17. (verb)root to plant and fix deeply in the earth, or as in the earth; to implant firmly; hence, to makedeep or radical; to establish; -- used chiefly in the participle; as, rooted trees or forests; rooted dislike
18. (verb)root to tear up by the root; to eradicate; to extirpate; -- with up, out, or away
Definition of root 
