- frustule
- noun Etymology: French, from Latin frustulum, diminutive of frustum Date: 1848 the 2-valved siliceous shell of a diatom
New Collegiate Dictionary. 2001.
frustule
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Frustule — Frus tule, n. [L. frustulum, dim. fr. frustum a piece: cf. F. frustule.] (Bot.) The siliceous shell of a diatom. It is composed of two valves, one overlapping the other, like a pill box and its cover. [1913 Webster] … The Collaborative International Dictionary of English
frustule — ● frustule nom masculin (latin frustulum, de frustum, morceau) Enveloppe siliceuse des diatomées, ayant l aspect d une boîte minuscule, à couvercle emboîtant. frustule [fʀystyl] n. f. ÉTYM. 1846, Bescherelle; lat. frustulum, dimin. de frustum «… … Encyclopédie Universelle
frustule — [frus′tyo͞ol΄, frus′cho͞ol΄] n. [Fr < L frustulum, dim. of frustum, a piece: see FRUSTUM] either of the two interlocking halves of the hard, siliceous shell of a diatom cell … English World dictionary
Frustule — A frustule is the hard and porous cell wall or external layer belonging to diatoms. The frustule is composed almost purely of silica, made from silicic acid, and is coated with a layer of organic substance, sometimes pectin, a fiber most commonly … Wikipedia
frustule — noun The siliceous shell of a diatom. A frustule is the hard and porous cell wall or external layer of diatoms. The frustule is composed almost purely of silica … Wiktionary
Frustule — Frustules de plusieurs espèces d algues La frustule est une coque siliceuse entourant certaines diatomées (Bacillariophyta), algues unicellulaires microscopiques. Les frustules ont des structures géométriques, formées en général de deux valves de … Wikipédia en Français
frustule — (frus tūl) A silicified cell wall in the diatoms … Dictionary of microbiology
frustule — /frus choohl/, n. Bot. the siliceous cell wall of a diatom. [1855 60; < F < LL frustulum, dim. of frustum FRUSTUM] * * * … Universalium
frustule — (fru stu l ) s. m. Terme de botanique. Corpuscules ou cellules séparables dont la réunion forme certaines plantes inférieures de la classe des algues. ÉTYMOLOGIE Diminutif de frustum, morceau … Dictionnaire de la Langue Française d'Émile Littré
frustule — [ frʌstju:l] noun Botany the silicified cell wall of a diatom, consisting of two valves or overlapping halves. Origin C19: from L. frustulum, dimin. of frustum (see frustum) … English new terms dictionary
