单词 | scleroblast |
释义 | scleroblast|ˈsklɪərəʊblæst| [f. Gr. σκληρό-ς hard + -blast.] 1. Bot. A stone-cell or sclereid.
1882Vines tr. Sachs' Bot. 125 Of very common occurrence are, moreover, groups or layers of scleroblasts (especially in the cortex of many woody plants and the juicy flesh of pears). 1884Masters Henfrey's Bot. (ed. 4) 461 The term..scleroblast or stone-cell. 2. Zool. A spicule-forming cell in sponges.
1887Sollas in Encycl. Brit. XXII. 417/2 (Sponge) The sigmaspire is formed as a superficial spiral thickening in the wall of a spicule cell or scleroblast. 1909J. W. Jenkinson Experim. Embryol. 3 In some Sponges the scleroblasts begin to secrete spicules in the larval period. |

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