Source : Webster's Revised Unabridged Dictionary (1913)

Pelargonic \Pel`ar*gon"ic\, a. (Chem.)
   Pertaining to, or designating, an organic acid (called also
   nonoic acid) found in the leaves of the geranium
   ({Pelargonium}) and allied plants.

Pelargonium \Pel`ar*go"ni*um\, n. [NL., fr. Gr. ? a stork.]
   (Bot.)
   A large genus of plants of the order {Geraniace[ae]},
   differing from Geranium in having a spurred calyx and an
   irregular corolla.

   Note: About one hundred and seventy species are known, nearly
         all of them natives of South Africa, and many having
         very beautiful blossoms. See the Note under {Geranium}.

Source : WordNet®

Pelargonium
     n : geraniums native chiefly to South Africa; widely cultivated
         [syn: {genus Pelargonium}]