[Pete] bought himself an old South Bend lathe, but unfortunately some of the thumb screws were missing from this fine old machine. Originally, the lathe had knurled thumbscrews, and with a thumbscrew ...
In apes and Old World monkeys, the thumb can be rotated around its axis, but the extensive area of contact between the pulps of the thumb and index finger is a human characteristic.
The meaning of THUMB is the short thick digit of the human hand that is analogous in position to the big toe and differs from the other fingers in having only two phalanges, allowing greater freedom of movement, and being opposable to each of them.
The thumb is one of five digits on each hand, but it has a different shape and function from the other digits. However, most medical guides refer to the thumb as a finger.
Is the thumb a finger and what is its function? - Medical News Today
THUMB definition: 1. the short, thick finger on the side of your hand that makes it possible to hold and pick things…. Learn more.
The thumb is the first digit of the hand that functions differently from the other fingers, which has the greatest range of motion and movement allowing for flexion, extension, abduction, adduction, opposition, and retropulsion
Definition of thumb noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Pain in your thumb can have several different causes. Some of the causes can be treated at home, with rest and over-the-counter pain medication while you wait for an injury to heal.