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Webster 1913 Edition

Adj.

Having a breast; – used in composition with qualifying words, in either a literal or a metaphorical sense;

as, a single-

breasted

coat

The close minister is buttoned up, and the brave officer open-

breasted

, on these occasions.

Spectator.

Adj.

Having a broad breast; having a fine voice.

breasted ‎(not comparable)

Having a breast, or breasts.
- 2000, Thomas A. Easton, Stones of Memory (page 11)
  He tried to imagine them sleekened and breasted, not just the daughters of peasants such as he had known when he was young and a peasant himself but succubi of the sort he had once resisted in the night, and he felt nothing.
(in combination) Having a specified kind of breast or covering.

breasted