1. thenar - Noun
2. thenar - Adjective
Of or pertaining to the thenar; corresponding to thenar; palmar.
The palm of the hand.
The prominence of the palm above the base of the thumb; the thenar eminence; the ball of the thumb. Sometimes applied to the corresponding part of the foot.
Source: Webster's dictionaryThe human thumb also has other muscles in the thenar group ( opponens and abductor brevis muscle ), moving the thumb in opposition, making grasping possible. Source: Internet
The thumb has one long flexor and a short flexor in the thenar muscle group. Source: Internet