a. 1. Having a crest. [ 1913 Webster ]
But laced crested helm. Dryden. [ 1913 Webster ]
2. (Zool.) Having a crest of feathers or hair upon the head. “The crested bird.” Dryden. [ 1913 Webster ]
3. (Bott.) Bearing any elevated appendage like a crest, as an elevated line or ridge, or a tuft. Gray. [ 1913 Webster ]