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单词 polyactinal
释义

> as lemmas

polyactinal
polyactinal adj.
Brit. /ˌpɒlɪakˈtʌɪnl/
,
/ˌpɒlɪˈaktɪnl/
,
U.S. /ˌpɑliˌækˈtaɪn(ə)l/
,
/ˌpɑliˈæktən(ə)l/
Zoology (of a sponge spicule) having many rays; (of a sponge) having such spicules.
ΚΠ
1890 Cent. Dict. XVI. 4599/2 Polyactinal, many-rayed; multiradiate; in sponges, polyact.
1967 Jrnl. Paleontol. 41 511 (title) A new polyactinal sponge from the Antelope Valley Formation (Ordovician) in the Toquima Range, Nevada.
1995 Biol. Jrnl. Linn. Soc. 55 1 The current differences in shape between both spicule types are considered the result of a divergent morphological evolution from an ancestral polyactinal corpuscle.
extracted from poly-comb. form
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as lemmas
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