What is "headsails"

Usage examples of "headsails".

The foremast was still standing, but the foretopsail was flying loose, and the headsails were streaming out in long, white pennons in front of her.

All hands watched her coming on--the brightly coppered forefoot parting the water like a golden knife, the headsails flapping lazily and emptily at each downward surge, and the towering canvas tiers dipping and curtsying with each stately swing of the sea.