Definition of -merous in English:

-merous

Syllabification: -merous

combining form

Biology
Having a specified number of parts: pentamerous

Origin

on the pattern of words such as (di)merous (see also -mer).

Definition of -merous in:

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Word of the day envenom
Pronunciation: ɪnˈvɛnəm
verb
put poison on or into; make poisonous