[MoreThanThree]

Humanoid
A humanoid usually has two arms, two legs, and one head, or a
humanlike torso, arms, and head. A humanoid has few or no
supernatural or extraordinary abilities. See Table: Humanoids
for physical ability scores, recommended minimum Hit Dice,
and damage based on size.
Hit Die: d8.
Base Attack Bonus: ¾ of total Hit Dice (see Table: Creature
Saves and Base Attack Bonuses).
Good Saving Throws: Choose one (usually Reflex).
Skill Points: 6 + Int modifier, plus 1 point per Hit Dice beyond 1
HD.
Feats: 1, plus 1 feat per 4 Hit Dice beyond 1 HD.
Humanoids share the following additional traits.
Size: Humanoids must be Medium-size or smaller.
Weapon and Armor Proficiency: Humanoids with more than 1
Hit Die receive one bonus feat selected from the following list:
Archaic Weapons Proficiency, Armor Proficiency (light), or
Simple Weapons Proficiency.
Keen Sight (Ex): Humanoids accustomed to living underground
may have darkvision with a range of 60 feet, low-light vision, or
both (as noted in their entries).

I couldn't find a definition in any 3rd edition book, so here's the d20 modern definition. http://www.limey.net/~magnum/DL/D20%20Mo...lebook.pdf