Pelargonic :: Pelargonic (a.) Pertaining to, or designating, an organic acid (called also nonoic acid) found in the leaves of the geranium (Pelargonium) and allied plants..
Pelargonium :: Pelargonium (n.) A large genus of plants of the order Geraniaceae, differing from Geranium in having a spurred calyx and an irregular corolla..