Plural of cardo; hinge-like structures or pivotal points, particularly anatomical hinges in insects or other organisms.
Direct from Latin cardines, plural of cardo, meaning 'hinge.' In anatomy, particularly entomology, the term describes the paired hinge structures that support the maxillae in insect mouthparts.
If you've ever wondered how insects chew, their mouthparts literally work like mechanical hinges—the cardines are the tiny pivot points that let mandibles and maxillae work in coordinated movement, making them nature's original mechanical engineering.
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