Of or relating to fish with the characteristic jaw structure of eventognaths.
From 'eventognath' plus the adjectival suffix '-ous' (from Latin '-osus'). The adjective form describes the anatomical feature without requiring the noun.
The '-ous' suffix is Latin in origin and appears in countless English adjectives—'famous,' 'dangerous,' 'nervous'—making it one of the most recognizable word-endings that signals 'full of' or 'having the quality of.'
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