toponomy

from WordNet (r) 3.0 (2006)

toponomy
    n 1: the nomenclature of regional anatomy [syn: {toponymy},
         {toponomy}]
    2: the branch of lexicology that studies the place names of a
       region or a language [syn: {toponymy}, {toponomy}]

from The Collaborative International Dictionary of English v.0.48

Toponomy \To*pon"o*my\, n. [Gr. ? place + ? to distribute.]
   The designation of position and direction. --B. G. Wilder.
   [1913 Webster]

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