1. Disjoined; separated.
2. (Science: zoology) Having the head, thorax, and abdomen separated by a deep constriction. Disjunct tetrachords, tetrachords so disposed to each other that the gravest note of the upper is one note higher than the acutest note of the other.
Origin: L. Disjunctus, p. P. Of disjungere to disjoin. See Disjoin, and cf. Disjoint.