DICT.TW Dictionary Taiwan

 Reef, v. t. [imp. & p. p. Reefed p. pr. & vb. n. Reefing.] Naut. To reduce the extent of (as a sail) by rolling or folding a certain portion of it and making it fast to the yard or spar.
 To reef the paddles, to move the floats of a paddle wheel toward its center so that they will not dip so deeply.
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