Having two rounded knob-like structures (condyles) on both sides, especially describing vertebral joints.
From Greek 'amphi-' (both) + 'kondylos' (rounded knob). This anatomical descriptor emerged in comparative anatomy studies of vertebrate skeletons.
The word 'condyle' comes from knuckle-like knobs on bones, and when you have them on both sides in a symmetrical pattern, it creates incredibly stable joints—that's why this design appears in creatures with heavy bodies that need structural strength.
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