Answer: utricle

AnswerCrossword Clue
UTRICLESaclike part of the ear
utriclethe larger of two sacs in the membranous labyrinth of the internal ear
utriclesmall sac or baglike body, as an air-filled cavity in a seaweed
utriclea saclike cavity in the inner ear, also UTRICULUS
utriclethin bladderlike pericarp or seed vessel