Definition of blow:

part of speech: verb

To come into flower; to show flower.

part of speech: verb

To move as air; to pant or puff; to throw or drive a current of air into or upon; to warm by the breath; to deposit eggs as flies.

part of speech: noun

A stroke; first act of hostility; a sudden calamity.

Usage examples:

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ronde bosse

In arch., a term applied to sculptured objects in their full forms, in contradistinction to those which are in relief, or attached more or less to a plane or ground. ...