<p><strong>Noun</strong></p><ul><li>(Plural: carinas)<ul><li>Zoology: A keellike part or ridge, especially a ridge of bone on the ventral side of the sternum of birds.</li><li>Botany: The two conjoined lower petals of a pea or bean flower that enclose the stamen and style.</li></ul></li></ul><p><strong>End of Response</strong></p>