Crestate

Crested is a term used in biology and heraldry to describe an appendage that forms a crest. In zoology, it commonly refers to a prominent fleshy outgrowth on the head of a bird, such as the comb of a rooster or the crest of a cockatoo. These structures can vary widely in size, shape, and color, and often play a role in sexual display, species recognition, or thermoregulation. For example, the elaborate crest of the peacock is a key feature in its courtship rituals. In some reptiles, like the basilisk lizard, a similar dorsal fin-like structure is also referred to as a crest.

The term "crested" is also used in botany to describe a similar feature, often a raised or ruffled edge on a petal or leaf. In heraldry, a crest is a specific element that appears above the helmet in a coat of arms. It can be a depiction of an animal, object, or symbol and often has a historical or familial significance. The adjective "crested" in heraldry indicates that a charge or element bears a crest. The presence of a crest is a notable characteristic, distinguishing individuals or species through visual ornamentation.