Actinost definitions

Actinost

• (n.) One of the bones at the base of a paired fin of a fish.
Found on http://thinkexist.com/dictionary/meaning/actinost/

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Actinost

Ac'tin·ost noun [ Greek ..., ..., ray + ... bone.] (Anat.) One of the bones at the base of a paired fin of a fish.
Found on http://www.encyclo.co.uk/webster/A/24

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