1. Plural of baleen; flexible, horny plates that hang from the upper jaw of certain whales and are used to filter food from seawater.
Usage: Usually used in plural form; Also called whalebone

Examples

• Baleen whales use baleens to strain krill and small fish from the ocean.
• The baleens of a blue whale can grow to be over 3 feet long.
• Historically, baleens were harvested and used to make corsets and other rigid garments.
• Unlike toothed whales, baleen whales have baleens instead of teeth.
• The baleens act like a natural filter system for the whale's feeding process.