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单词 postumbonal
释义

> as lemmas

postumbonal
postumbonal adj.
Brit. /(ˌ)pəʊstˈʌmbənl/
,
/ˌpəʊstʌmˈbəʊnl/
,
U.S. /ˌpoʊstˈəmbən(ə)l/
,
/ˌpoʊstˌəmˈboʊn(ə)l/
Conchology situated or measured behind or posterior to the umbo of a shell.
ΚΠ
1856 T. A. Conrad Descr. Tertiary Fossils in H. L. Abbot Rep. Explor. Route Sacramento Valley to Columbia River: Geol. Rep. (U.S. War Dept.: Rep. Explor. Route to Pacific VI) 70 Arcopagia medialis... Post umbonal slope slightly contracted in the middle, emarginate at base.
1947 Philos. Trans. (Royal Soc.) B. 233 10 Immediately in front and over the tip of the umbo the shell is thick, becoming thinner on the post-umbonal slope.
1997 U.S. Geol. Surv. Bull. No. 2151. 4/2 Monotis (Monotis) alaskana... Postumbonal length up to twice anterior length.
extracted from post-prefix
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as lemmas
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更新时间:2024/12/23 19:04:52