orthotriaenen.

Brit.

/ˌɔːθə(ʊ)ˈtrʌɪiːn/, U.S.

/ˌɔrθoʊˈtraɪˌin/

Origin: Formed within English, by compounding. Etymons: ortho- comb. form, triaene n.

Etymology: < ortho- comb. form + triaene n. Compare anatriaene n., dichotriaene n., protriaene n., etc.

Zoology.

A sponge spicule with three short rays projecting at right angles from a longer ray.

ΘΚΠ

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > triaene > specific types of

anatriaene1887

dichotriaene1887

orthotriaene1887

trichotriaene1887

triaenotyle1909

triaenostrongyle-

triaenostyle-

1887 W. J. Sollas in Encycl. Brit. XXII. 417/1 The arms make different angles with the shaft:..when extended at right angles an orthotriæne.

1940 L. H. Hyman Invertebrates vi. 337 Other types are the plagio- and orthotriaenes with more or less horizontal cladi.

1968 P. Brien in M. Florkin & B. T. Scheer Chem. Zool. II. ii. i. 11 Generally the megascleres implanted in the sponge project from its surface, which they cover with their cladome (ortho-, pro-, and anatriaenes).

1978 P. R. Bergquist Sponges iii. 92 (caption) Representative megasclere types of the Demospongiae... (j) orthotriaene.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	orthotriaene
释义	orthotriaenen. Brit. /ˌɔːθə(ʊ)ˈtrʌɪiːn/, U.S. /ˌɔrθoʊˈtraɪˌin/ Origin: Formed within English, by compounding. Etymons: ortho- comb. form, triaene n. Etymology: < ortho- comb. form + triaene n. Compare anatriaene n., dichotriaene n., protriaene n., etc. Zoology. A sponge spicule with three short rays projecting at right angles from a longer ray. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > triaene > specific types of anatriaene1887 dichotriaene1887 orthotriaene1887 trichotriaene1887 triaenotyle1909 triaenostrongyle- triaenostyle- 1887 W. J. Sollas in Encycl. Brit. XXII. 417/1 The arms make different angles with the shaft:..when extended at right angles an orthotriæne. 1940 L. H. Hyman Invertebrates vi. 337 Other types are the plagio- and orthotriaenes with more or less horizontal cladi. 1968 P. Brien in M. Florkin & B. T. Scheer Chem. Zool. II. ii. i. 11 Generally the megascleres implanted in the sponge project from its surface, which they cover with their cladome (ortho-, pro-, and anatriaenes). 1978 P. R. Bergquist Sponges iii. 92 (caption) Representative megasclere types of the Demospongiae... (j) orthotriaene. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1887
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