Relating to the astragalus bone in the ankle or foot, especially in anatomical or medical contexts.
From astragalus (the ankle bone) plus the adjectival suffix -ar, creating a medical adjective describing things related to this bone.
The astragalus is the only bone in your foot that connects directly to your leg—it's like a keystone that bears all your body weight, which is why ankle injuries can be so serious!
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