Originally: an edible root, as a carrot or parsnip. Later gen.: the root of a tree or plant; the fibrous roots of a tap root, etc. Also: tree…
| 单词 | θ21445 | 
| 释义 | the world > plants > part of plant > root > 			[noun]		 (74)		 moreeOE Originally: an edible root, as a carrot or parsnip. Later gen.: the root of a tree or plant; the fibrous roots of a tap root, etc. Also: tree… rootc1175 The part of a plant or tree, normally underground, which attaches it to the ground (or other supporting medium) and conveys water and nutrients… master-rootc1330 The main root of a plant. rootinga1400 A firm hold or attachment by means of roots. Formerly also: †a root; roots collectively (obsolete). Now chiefly figurative. radix1558 Botany. The root of a plant (now rare). Also in the names of pharmaceutical preparations of the roots of plants, with (usually postmodifying)… leg1597 A plant stem or root; the trunk of a young tree. taproot1601 A straight root, of circular section, thick at the top, and tapering to a point, growing directly downwards from the stem and forming the centre… top-root1651 = taproot, n. tuberous root1668 Botany. Of the nature of a tuber; chiefly in tuberous root, (a) a tuber, or an underground stem bearing tubers (see tuber, n.2 1); (b) more… heart-root1669 Botany. The taproot of a tree. Obsolete. pivot1725 Horticulture. A tapering lower stem in a plant. Cf. pivot, v. 4. Obsolete. spill1766 A stem-like root. Also spill-root. Obsolete. tap1796 An object having the shape of a slender tapering cylinder, as an icicle; esp. a taproot. tutty-more1873 tutty men n. also tuttimen plural at Hungerford, tithingmen who collect contributions on Hock Tuesday, carrying a tutty-pole n. wreathed with… pneumatophore1891 Botany. A specialized type of aerial root having numerous lenticels and air spaces (aerenchyma), thought to promote aeration of the roots of… stem root1901 a root that develops from the stem of a plant, esp. on a lily from just above the top of the bulb. heart-root1903 Botany. A large, obliquely descending tree root, as contrasted with a vertical taproot or a horizontal root. Frequently attributive, esp. in heart-… Subcategories:— 			quality of being rooty			(1)		 — 			summit of root			(2)		 — 			root nodule			(4)		 — 			root or plant			(2)		 — 			rootlet, fibre, or subsidiary root			(17)		 — 			prop- or stilt-root			(2)		 — 			rhizome			(5)		 — 			corm			(2)		 — 			tuber			(6)		 — 			rhizoid or hapteron			(3)		 — 			arrangement or system of roots			(2)		 — 			spongiole			(4)		 — 			root-ball or rhizoplane			(2)		 — 			rhizosphere			(1)		 — 			root pressure			(1)		 — 			canal in root			(1)		 — 			root-cap			(2)		  | 
	
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