noun Download 🔗Share A rib. Examples : "The doctor pointed to the costa on the X-ray, explaining that it was fractured. " anatomy physiology body part organ Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A riblike part of a plant or animal, such as a middle rib of a leaf or a thickened vein or the margin of an insect wing. Examples : "The teacher pointed to the leaf and explained how the costa, the central vein, provides support and carries water to the entire leaf. " biology anatomy plant animal insect part organism structure Chat with AIVocabulary GamePractice Reading