n. In anatomy and zoology, a phalanx of a digit.n. In entomology, any one of the joints of an insect's tarsus: generally used collectively of all the joints, exclusive or not of the metatarsus: as, the anterior phalanges.n. In botany, a bundle of stamens joined more or less by their filaments: as, the phalanges of stamens in a diadelphous or polyadelphous flower.n. Same as phalangiid.