catacline

Not valid in Scrabble

It's a recognised English word, but it isn't in the official NASPA Scrabble word list.

Definition of catacline

1 sense · 1 part of speech

The part of a shell in which the interarea is at an angle of greater than 180° to the plane of commissure

Definitions from Wiktionary, CC BY-SA.

3 plays · some not in Scrabble

200+ playable · top: ANALECTIC (13 pts)

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