† protogastern.

Origin: A borrowing from German. Etymon: German Protogaster.

Etymology: < German Protogaster ( Haeckel Anthropogenie (1874) xxiii. 603) < proto- proto- comb. form + ancient Greek γαστήρ stomach (see -gaster comb. form). Compare metagaster n.

Biology. Obsolete. rare.

Haeckel's term for: the rudimentary alimentary cavity of a gastrula (the archenteron). Cf. metagaster n.

ΚΠ

1879 tr. E. Haeckel Evol. Man I. viii. 194 I shall call the central cavity of the Gastrula-body the primitive intestine (protogaster), and its opening the primitive mouth (protostoma).

1884 Proc. Boston Soc. Nat. Hist. 23 151 The central cavity of the blastula stage, the so-called Protogaster of Haeckel, connects with the exterior by a blastulapore, the ‘Protostoma’ of Haeckel.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2020).

单词	protogaster
释义	† protogastern. Origin: A borrowing from German. Etymon: German Protogaster. Etymology: < German Protogaster ( Haeckel Anthropogenie (1874) xxiii. 603) < proto- proto- comb. form + ancient Greek γαστήρ stomach (see -gaster comb. form). Compare metagaster n. Biology. Obsolete. rare. Haeckel's term for: the rudimentary alimentary cavity of a gastrula (the archenteron). Cf. metagaster n. ΚΠ 1879 tr. E. Haeckel Evol. Man I. viii. 194 I shall call the central cavity of the Gastrula-body the primitive intestine (protogaster), and its opening the primitive mouth (protostoma). 1884 Proc. Boston Soc. Nat. Hist. 23 151 The central cavity of the blastula stage, the so-called Protogaster of Haeckel, connects with the exterior by a blastulapore, the ‘Protostoma’ of Haeckel. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2020). < n.1879
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