(transitive) To represent (a person, typically of a foreign or minority ethnicity) as simian.

(anatomy, pathology) A crease that extends across the palm of the human hand, formed by the fusion of the two palmar creases, found especially in people with Down syndrome.

plural of simian crease

plural of simian shelf

(anatomy) A bony thickening on the front of the mandible of an ape.

plural of simian immunodeficiency virus

(virology) A species of retrovirus that causes persistent infections in several species of African non-human primates.