noun Download 🔗Share The strengthened vein down the middle of a flower petal or simple leaf or leaflet. Examples : "The botanist pointed to the long, central midrib of the maple leaf, explaining how it provides support and carries water. " plant part biology nature structure organism Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The continuation of the petiole of a pinnately compound leaf around which the leaflets attach. Examples : "In botany class, we learned that the midrib of a rose leaf extends from the stem, and the individual leaflets are attached along its length. " biology plant anatomy part structure nature Chat with AIVocabulary GamePractice Reading