Noun | 1. | cartilaginous structure - body structure given shape by cartilage anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure" epiglottis - a flap of cartilage that covers the windpipe while swallowing tragus - a small cartilaginous flap in front of the external opening of the ear larynx, voice box - a cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech costal cartilage - the cartilages that connect the sternum and the ends of the ribs; its elasticity allows the chest to move in respiration |