PUBES
pubes, pubic region, loins
(noun) the lower part of the abdomen just above the external genital organs
PUBIS
pubis, pubic bone, os pubis
(noun) one of the three sections of the hipbone; together these two bones form the front of the pelvis
Source: WordNet® 3.1
Etymology 1
Noun
pubes
plural of pubis; pubic bones.
Noun
pubes pl (plural only)
The pubic hair.
The pubic region.
Etymology 2
Noun
pubes
plural of pube
Usage notes
It is not uncommon today for even educated people to be familiar with the back-formed sense of pubes and its singular, pube, while being unaware of the original sense, declension, and etymology. Whereas the original sense occurs mostly in medical English rather than lay English, the newer sense is widely encountered in casual online culture, despite that it is informal enough not to be used in formal-register lay vocabulary.
Synonyms
• See also pubic hair
Anagrams
• EPUBs, epubs
Source: Wiktionary
Pu"bes, n. Etym: [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.)
Definition: The down of plants; a downy or villous substance which grows on
plants; pubescence.
Source: Webster’s Unabridged Dictionary 1913 Edition