1. relating to or serving the function of exhaling or breathing out
Usage: technical; biology

1. an opening or duct through which water or air is expelled, especially in aquatic organisms
Usage: zoology; marine biology

Examples

• The exhalant siphon of the clam allows it to expel water after filtering food.
• Bivalves use their exhalant opening to discharge filtered water back into the ocean.
• The exhalant current carries waste products away from the organism's body.
• Marine biologists studied the exhalant structures of various mollusks.
• The exhalant process in these creatures is essential for their feeding mechanism.