1. Angled outward, bent or twisted outward, as in cubitus valgus, coxa valga, hallux valgus, and genu valgum.
2. A Latin adjective describing any joint in an extremity that is deformed, such that the more distal of the two bones forming a joint deviates away from the midline, as in knock-knee.

Valgus is a form of the adjective which is used only with masculine nouns [hallux valgus (s.), coxae valgae (pl.)]. With feminine nouns, the form valga is used [coxa valga (s.), coxae valgae (pl.)], and with neuter nouns, the form valgum [genu valgum (s.), genua valga (pl.)].

Deviation of the extended forearm to the outer (radial) side of the axis of the limb.

1. Displacement of the big toe toward the other toes.
2. A displacement of the big toe away from the midline at the metatarsophalangeal joint.

When the joint is covered with an adventitious bursa, it is called a bunion.

The abnormal deviation or slightly different position of the shortest and broadest finger toward the ulnar side (same side of the arm as the little finger) of the larger bone of the forearm: The pollex valgus indicated an unusual turning away of the thumbs from the palms of Susan's hands or toward the larger of the two long bones between the wrist and the elbow.

Permanent eversion of the foot, the inner side alone of the sole resting on the ground.

It is usually combined with a breaking down of the plantar arch.