CEFR C1
acanthopterygious
adjective
Meaning
acanthopterygious means (zoology) Having fins in which the rays are hard and spinelike; spiny-finned. It can have more than one sense, so use the alternate meanings and examples to choose the meaning that matches your sentence.
Examples
- The writer described the response as acanthopterygious.
- A acanthopterygious tone can change the mood of a conversation.