noun Download 🔗Share Any of the ultimate leaflets of a bipinnate or tripinnate leaf; a subleaflet. Examples : "The fern's large leaves were divided into smaller leaflets, and each of those leaflets was further divided into tiny pinnules, giving the plant a delicate, feathery appearance. " plant biology part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A part or an organ which resembles the barb of a feather, particularly the side branches on the stalks of crinoids; Any of the lateral divisions of the finger-like stalks of an encrinite. Examples : "The fossil showed the delicate pinnules branching off the main stalk of the ancient sea lily. " organism anatomy biology plant part Chat with AIVocabulary GamePractice Reading