hallux

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hallux (hal-ŭks) n. (pl. halluces) the big toe. h. rigidus painful stiffness and enlargement of the joint at the base of the big toe, resulting from osteoarthritis. h. valgus a deformity in which the big toe is displaced towards the other toes. It is associated with a bunion. h. varus displacement of the big toe away from the others.

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