tribrachia
[ trī-brā′kē-ə ]
n.
A condition seen in conjoined twins when the fusion has merged the adjacent arms to form a single one, so that there are only three arms for the two bodies.
Words nearby tribrachia
tribo-,
triboelectricity,
tribology,
triboluminescence,
tribrach,
tribrachia,
tribromide,
tribromoacetaldehyde,
tribromoethanol,
tribulation,
tribunal