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ELM 音标拼音: ['ɛlm] n. 榆树 ; ( unix操作系统中的一个信件处理程序) 榆树 ; ( unix操作系统中的一个信件处理程式) elm n 1: any of various trees of the genus Ulmus: important timber or shade trees [ synonym: { elm}, { elm tree}] 2: hard tough wood of an elm tree; used for e. g. implements and furniture [ synonym: { elm}, { elmwood}] Elm \ Elm\, n. [ AS. elm; akin to D. olm, OHG. elm, G. ulme, Icel. almr, Dan. & Sw. alm, L. ulmus, and E. alder. Cf. { Old}.] ( Bot.) A tree of the genus { Ulmus}, of several species, much used as a shade tree, particularly in America. The English elm is { Ulmus campestris}; the common American or white elm is { U. Americana}; the slippery or red elm, { U. fulva}. [ 1913 Webster] { Elm beetle} ( Zo[" o] l.), one of several species of beetles ( esp. { Galeruca calmariensis}), which feed on the leaves of the elm. { Elm borer} ( Zo[" o] l.), one of several species of beetles of which the larv[ ae] bore into the wood or under the bark of the elm ( esp. { Saperda tridentata}). { Elm butterfly} ( Zo[" o] l.), one of several species of butterflies, which, in the caterpillar state, feed on the leaves of the elm ( esp. { Vanessa antiopa} and { Grapta comma}). See { Comma butterfly}, under { Comma}. { Elm moth} ( Zo[" o] l.), one of numerous species of moths of which the larv[ ae] destroy the leaves of the elm ( esp. { Eugonia subsignaria}, called elm spanworm). { Elm sawfly} ( Zo[" o] l.), a large sawfly ({ Cimbex Americana}). The larva, which is white with a black dorsal stripe, feeds on the leaves of the elm. [ 1913 Webster] |
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