- hippo-horse
- hippogonalBeing a move in a board game that is neither orthogonal nor diagonal, as a knight's move in chess. In chess, an (m,n) move spans m squares in one of the orthogonal directions and n squares in a perpendicular direction; the move is hippogonal if m and n are not equal and both greater than zero: 0 < n < m.
- hippotigrineOf, pertaining to, or resembling the zebra.
- hippuriteA fossil bivalve mollusk of the genus Hippuritida, having a conical, cup-shaped undervalve, with a flattish upper valve or lid.
- hippuspupillary athetosis; spasmodic dilation and contraction of the pupil between the sphincter and dilator muscles.