'Toponymy' definitions:

Definition of 'toponymy'

From: WordNet
noun
The nomenclature of regional anatomy [syn: toponymy, toponomy]
noun
The branch of lexicology that studies the place names of a region or a language [syn: toponymy, toponomy]

Definition of 'Toponymy'

From: GCIDE
  • Toponymy \To*pon"y*my\, n. A system of toponyms; the use of toponyms. -- {To*pon"y*mal}, {Top`o*nym"ic}, {Top`o*nym"ic*al}, a. [Webster 1913 Suppl.]