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单词 protoblast
释义

> as lemmas

protoblast
protoblast n.
Brit. /ˈprəʊtə(ʊ)blast/
,
U.S. /ˈproʊdəˌblæst/
Biology (a) a primitive or undifferentiated cell; spec. a blastomere (obsolete); (b) a cell without a cell wall; cf. protoplast n.1 2 (rare).
ΚΠ
1879 Lancet 22 Mar. 414/1 More recently Schüppel maintained that they [sc. giant-cells] arose in the blood-vessels from protoblasts.
1894 E. B. Wilson in Biol. Lect. 1893 (Marine Biol. Lab., Wood's Hole, Mass.) 10 The architecture of the embryo is fully outlined in the arrangement of the parent blastomeres, or protoblasts.
1937 Amer. Jrnl. Bot. 24 279/2 A..discoloration of the walls is usual in wound tissues and may be due to absorption of tannins, phlobaphenes, or other decomposition products of the protoblasts.
extracted from proto-comb. form
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as lemmas
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