Meaning of HAND in English
End part of the arm , consisting of the wrist joint, palm, thumb, and fingers.
The hand has great mobility and flexibility to carry out precise movements. Bipedal locomotion in humans frees the hands for grasping and manipulation. The opposable thumb allows them to pick up small items and grip objects from both sides. Dexterity in the hands and increased brain size are believed to have evolved together in humans.
Britannica English dictionary. Английский словарь Британика. 2012