Term Name: prepollex
Synonyms: pseudothumb
Definition: A rudimentary additional digit-like structure on the preaxial side of the thumb of certain amphibians and mammals[dictionary.com].
Ontology: Uberon Ontology [UBERON:0005880]

Relationships
is part of: carpal region
has parts: prepollex skeleton prepollical protuberances
is a type of: autopodial extension
inverse disjoint_from: digit