raricostationn.

Brit.

/ˌrɛːrᵻkɒˈsteɪʃn/, U.S.

/ˌrɛrəkɑˈsteɪʃ(ə)n/

Origin: Formed within English, by derivation. Etymons: rare adj.¹, -i- connective, costa n.¹, -ation suffix.

Etymology: < rare adj.¹ + -i- connective + costa n.¹ + -ation suffix.

Palaeontology. rare.

The condition of having reduced ribbing.

ΚΠ

1930 G. R. de Beer Embryol. & Evol. vi. 44 There may be pronounced raricostation throughout several depressed whorls of young Gagaticeras [sc. an ammonite].

This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).

单词	raricostation
释义	raricostationn. Brit. /ˌrɛːrᵻkɒˈsteɪʃn/, U.S. /ˌrɛrəkɑˈsteɪʃ(ə)n/ Origin: Formed within English, by derivation. Etymons: rare adj.¹, -i- connective, costa n.¹, -ation suffix. Etymology: < rare adj.¹ + -i- connective + costa n.¹ + -ation suffix. Palaeontology. rare. The condition of having reduced ribbing. ΚΠ 1930 G. R. de Beer Embryol. & Evol. vi. 44 There may be pronounced raricostation throughout several depressed whorls of young Gagaticeras [sc. an ammonite]. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < n.1930
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