phagocytoblastn.
/ˌfaɡə(ʊ)ˈsʌɪtəblɑːst/, /ˌfaɡə(ʊ)ˈsʌɪtəblast/, U.S. /ˌfæɡoʊˈsaɪdəˌblæst/ Biology and Medicine. Now historical.
In the terminology of E. Metschnikoff: a primitive embryonic tissue comprising endoderm and mesoderm.
ΚΠ
1887 tr. E. Metschnikoff in Amer. Naturalist 21 427 The Phagocytella..was characterized by the possession of two primitive organs, a kynoblast and a phagocytoblast.
1971 Q. Rev. Biol. 46 87/2 Aside from certain peculiarities of classification..and such usages as kinetoblast [sic] for ectoderm and phagocytoblast for ‘endoderm,’ the treatment is not startlingly different from that of zoology in other parts of the world.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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n.1887