Definition of adelphogamy in English:

adelphogamy

noun

  • 1Anthropology
    Anthropology. Marriage between brothers and sisters, especially between several brothers of one family and a woman, or several sisters, of another.

  • 2Zoology
    Zoology. Mating between male and female siblings (especially in ants and certain other invertebrates).

Origin

Late 19th century. From ancient Greek ἀδελϕός brother + -gamy, probably after French adelphogamie.

Pronunciation:

adelphogamy

/ˌadɛlˈfɒɡəmi/