Dictionary Home »
Science » rib
rib science definition
- Any of a series of long, curved bones extending from the spine and enclosing the chest cavity. In mammals, reptiles, and birds, the ribs curve toward the center of the chest and in most cases attach to the sternum (breastbone). There are 12 pairs of ribs in humans. See more at skeleton.
- One of the main veins of a leaf.
Learn more about rib
Related Articles