Definition of ptero- in English:

ptero-

Pronunciation: /ˈtɛrəʊ/

combining form

Relating to wings; having wings: pterosaur

Origin

from Greek pteron 'feather, wing'.

Definition of ptero- in:

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Word of the day retroflex
Pronunciation: ˈrɛtrə(ʊ)flɛks
adjective
turned backwards