| alumroot | (noun) any of several herbs of the genus Heuchera | Synonyms: alumbloom |
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| arrowroot | (noun) white-flowered West Indian plant whose root yields arrowroot starch | Synonyms: American arrowroot, Maranta arundinaceae, obedience plant |
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| (noun) canna grown especially for its edible rootstock from which arrowroot starch is obtained | Synonyms: achira, Canna edulis, Canna indica, indian shot |
| (noun) a nutritive starch obtained from the root of the arrowroot plant | - |
| balsamroot | (noun) a plant of the genus Balsamorhiza having downy leaves in a basal rosette and yellow flowers and long balsam-scented taproots | - |
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| beetroot | (noun) round red root vegetable | Synonyms: beet |
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| (noun) beet having a massively swollen red root; widely grown for human consumption | Synonyms: Beta vulgaris rubra |
| birthroot | (noun) trillium of eastern North America having malodorous pink to purple flowers and an astringent root used in folk medicine especially to ease childbirth | Synonyms: purple trillium, red trillium, Trillium erectum |
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| bitterroot | (noun) showy succulent ground-hugging plant of Rocky Mountains regions having deep to pale pink flowers and fleshy farinaceous roots; the Montana state flower | Synonyms: Lewisia rediviva |
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| bloodroot | (noun) perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leaf and white flower in early spring and having acrid emetic properties; rootstock used as a stimulant and expectorant | Synonyms: puccoon, redroot, Sanguinaria canadensis, tetterwort |
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| breadroot | (noun) densely hairy perennial of central North America having edible tuberous roots | Synonyms: Indian breadroot, pomme blanche, pomme de prairie, Psoralea esculenta |
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| briarroot | (noun) hard woody root of the briar Erica arborea | - |
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| cheroot | (noun) a cigar with both ends cut flat | - |
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| cloveroot | (noun) hairy Eurasian plant with small yellow flowers and an astringent root formerly used medicinally | Synonyms: clover-root, Geum urbanum, herb bennet, wood avens |
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| colicroot | (noun) any of several perennials of the genus Aletris having grasslike leaves and bitter roots reputed to cure colic | Synonyms: colic root, crow corn, star grass, unicorn root |
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| coralroot | (noun) European bittercress having a knotted white rootstock | Synonyms: Cardamine bulbifera, coral-root bittercress, coralwort, Dentaria bulbifera |
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| costusroot | (noun) annual herb of the eastern Himalayas (Kashmir) having purple florets and a fragrant root that yields a volatile oil used in perfumery and for preserving furs | Synonyms: Saussurea costus, Saussurea lappa |
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| crinkleroot | (noun) North American herb with pungent scaly or toothed roots | Synonyms: Cardamine diphylla, crinkle-root, crinkle root, Dentaria diphylla, pepper root, toothwort |
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| feverroot | (noun) coarse weedy American perennial herb with large usually perfoliate leaves and purple or dull red flowers | Synonyms: horse gentian, tinker's root, Triostium perfoliatum, wild coffee |
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| fingerroot | (noun) tall leafy European biennial or perennial having spectacular clusters of large tubular pink-purple flowers; leaves yield drug digitalis and are poisonous to livestock | Synonyms: common foxglove, Digitalis purpurea, fairy bell, finger-flower, finger-root, fingerflower |
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| flagroot | (noun) perennial marsh plant having swordlike leaves and aromatic roots | Synonyms: Acorus calamus, calamus, myrtle flag, sweet calamus, sweet flag |
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| fumeroot | (noun) delicate European herb with greyish leaves and spikes of purplish flowers; formerly used medicinally | Synonyms: Fumaria officinalis, fumewort, fumitory |
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| (noun) herb of northern Europe and Asia having erect racemes of red flowers | Synonyms: Corydalis solida, fumewort |
| gingerroot | (noun) pungent rhizome of the common ginger plant; used fresh as a seasoning especially in Asian cookery | Synonyms: ginger |
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| longroot | (noun) deep-rooted perennial of southeastern United States | Synonyms: Arenaria caroliniana, pine-barren sandwort |
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| manroot | (noun) tropical American prostrate or climbing herbaceous perennial having an enormous starchy root; sometimes held to be source of the sweet potato | Synonyms: Ipomoea fastigiata, Ipomoea panurata, man-of-the-earth, scammonyroot, wild potato vine, wild sweet potato vine |
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| nerveroot | (noun) once common rose pink woodland orchid of eastern North America | Synonyms: Cypripedium acaule, moccasin flower |
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| orrisroot | (noun) fragrant rootstock of various irises especially Florentine iris; used in perfumes and medicines | Synonyms: orris |
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| papooseroot | (noun) tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally | Synonyms: blue cohosh, blueberry root, Caulophyllum thalictrioides, Caulophyllum thalictroides, papoose root, squaw root, squawroot |
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| pinkroot | (noun) a fungal disease of onions | - |
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| puttyroot | (noun) North American orchid bearing a single leaf and yellowish-brown flowers | Synonyms: adam-and-eve, Aplectrum hyemale |
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| redroot | (noun) perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leaf and white flower in early spring and having acrid emetic properties; rootstock used as a stimulant and expectorant | Synonyms: bloodroot, puccoon, Sanguinaria canadensis, tetterwort |
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| root | (noun) the embedded part of a bodily structure such as a tooth, nail, or hair | - |
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| (noun) (linguistics) the form of a word after all affixes are removed | Synonyms: base, radical, root word, stem, theme |
| (noun) a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes | Synonyms: etymon |
| (noun) the set of values that give a true statement when substituted into an equation | Synonyms: solution |
| (noun) the place where something begins, where it springs into being | Synonyms: beginning, origin, rootage, source |
| (noun) someone from whom you are descended (but usually more remote than a grandparent) | Synonyms: ancestor, antecedent, ascendant, ascendent |
| (noun) (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground | - |
| (noun) a number that, when multiplied by itself some number of times, equals a given number | - |
| (verb) take root and begin to grow | - |
| (verb) cause to take roots | - |
| (verb) become settled or established and stable in one's residence or life style | Synonyms: settle, settle down, steady down, take root |
| (verb) dig with the snout | Synonyms: rootle, rout |
| (verb) plant by the roots | - |
| (verb) cheer for | - |
| (verb) come into existence, originate | - |
| scammonyroot | (noun) tropical American prostrate or climbing herbaceous perennial having an enormous starchy root; sometimes held to be source of the sweet potato | Synonyms: Ipomoea fastigiata, Ipomoea panurata, man-of-the-earth, manroot, wild potato vine, wild sweet potato vine |
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| snakeroot | (noun) a plant of the genus Sanicula having palmately compound leaves and unisexual flowers in panicled umbels followed by bristly fruit; reputed to have healing powers | Synonyms: sanicle |
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| (noun) any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads | Synonyms: blazing star, button snakeroot, gay-feather, gayfeather |
| squawroot | (noun) tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally | Synonyms: blue cohosh, blueberry root, Caulophyllum thalictrioides, Caulophyllum thalictroides, papoose root, papooseroot, squaw root |
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| stoneroot | (noun) erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States | Synonyms: Collinsonia canadensis, horse balm, horseweed, richweed, stone-root, stone root |
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| taproot | (noun) something that provides an important central source for growth or development | - |
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| (noun) (botany) main root of a plant growing straight downward from the stem | - |
| uproot | (verb) pull up by or as if by the roots | Synonyms: deracinate, extirpate, root out |
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| (verb) destroy completely, as if down to the roots | Synonyms: eradicate, exterminate, extirpate, root out |
| (verb) move (people) forcibly from their homeland into a new and foreign environment | Synonyms: deracinate |