Source : Webster's Revised Unabridged Dictionary (1913)

Pubes \Pu"bes\, n. [L., the hair which appears on the body at
   puberty, from pubes adult.]
   1. (Anat.)
      (a) The hair which appears upon the lower part of the
          hypogastric region at the age of puberty.
      (b) Hence (as more commonly used), the lower part of the
          hypogastric region; the pubic region.

   2. (Bot.) The down of plants; a downy or villous substance
      which grows on plants; pubescence.

Source : WordNet®

pubes
     n : the lower part of the abdomen just above the external
         genital organs [syn: {pubic region}, {loins}]

pubis
     n : one of the three sections of the hipbone; together the two
         pubic bones form the front of the pelvis [syn: {pubic
         bone}, {os pubis}]
     [also: {pubes} (pl)]

pubes
     See {pubis}