root stem

root stem
the root part of the tooth in Chondrichthyes between the crown base and the root lobe section (Herman et al., 1994)

Dictionary of ichthyology. 2009.

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  • stem — [n] stalk of plant axis, branch, pedicel, pedicle, peduncle, petiole, shoot, stock, trunk; concept 428 Ant. root stem [v1] come from arise, be bred, be brought about, be caused, be generated, derive, develop, emanate, flow, head, issue, originate …   New thesaurus

  • Root — This article is about the part of a plant. For other uses, see Root (disambiguation). Primary and secondary roots in a cotton plant In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil. This is… …   Wikipedia

  • stem — {{11}}stem (n.) O.E. stemn, stefn stem of a plant, also either end post of a ship, from P.Gmc. *stamniz (Cf. O.S. stamm, O.N. stafn stem of a ship; Dan. stamme, Swed. stam trunk of a tree; O.H.G. stam, Ger. Stamm), from PIE root *sta …   Etymology dictionary

  • Root pressure — Root pressure: osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves.Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when… …   Wikipedia

  • Root — Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion, or… …   The Collaborative International Dictionary of English

  • Root and branch — Root Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion …   The Collaborative International Dictionary of English

  • Root barnacle — Root Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion …   The Collaborative International Dictionary of English

  • Root hair — Root Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion …   The Collaborative International Dictionary of English

  • Root leaf — Root Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion …   The Collaborative International Dictionary of English

  • Root louse — Root Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion …   The Collaborative International Dictionary of English

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