'Whitecap' definitions:

Definition of 'whitecap'

noun

A wave that is blown by the wind so its crest is broken and appears white [syn: whitecap, white horse]

From: GCIDE

Whitecap \White"cap`\, n.
1. (Zool.) (a) The European redstart; -- so called from its white forehead. (b) The whitethroat; -- so called from its gray head. (c) The European tree sparrow. [1913 Webster]
2. A wave whose crest breaks into white foam, as when the wind is freshening. [1913 Webster]
3. A member of a self-appointed vigilance committee attempting by lynch-law methods to drive away or coerce persons obnoxious to it. Some early ones wore white hoods or masks. [U. S.] -- {White"cap`}, v. -- {White"cap`per}, n. [Webster 1913 Suppl.]

From: GCIDE

Whitecap \White"cap`\, n.
1. (Zool.) (a) The European redstart; -- so called from its white forehead. (b) The whitethroat; -- so called from its gray head. (c) The European tree sparrow. [1913 Webster]
2. A wave whose crest breaks into white foam, as when the wind is freshening. [1913 Webster]
3. A member of a self-appointed vigilance committee attempting by lynch-law methods to drive away or coerce persons obnoxious to it. Some early ones wore white hoods or masks. [U. S.] -- {White"cap`}, v. -- {White"cap`per}, n. [Webster 1913 Suppl.]

From: GCIDE

Whitethroat \White"throat`\, n. (Zool.) Any one of several species of Old World warblers, esp. the common European species (Sylvia cinerea), called also strawsmear, nettlebird, muff, and whitecap, the garden whitethroat, or golden warbler ({Sylvia hortensis}), and the lesser whitethroat (Sylvia curruca). [1913 Webster]