THUMB

ovolo, thumb, quarter round

(noun) a convex molding having a cross section in the form of a quarter of a circle or of an ellipse

thumb

(noun) the part of a glove that provides a covering for the thumb

thumb, pollex

(noun) the thick short innermost digit of the forelimb

finger, thumb

(verb) feel or handle with the fingers; “finger the binding of the book”

hitchhike, hitch, thumb

(verb) travel by getting free rides from motorists

Source: WordNet® 3.1

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Etymology

Noun

thumb (plural thumbs)

The short thick digit of the hand that for humans has the most mobility and can be made to oppose (moved to touch) all of the other fingers.

(computing) The part of a slider that may be moved linearly along the slider.

(colloquial, Internet) A thumbnail picture.

Synonyms

• (digit): pollex, digit I, first digit (anatomy) ; thumby (colloquial)

Hypernyms

• (digit): digit, finger

Hyponyms

• (digit): opposable thumb

Verb

thumb (third-person singular simple present thumbs, present participle thumbing, simple past and past participle thumbed)

(transitive) To touch or cover with the thumb.

(transitive, with through) To turn the pages of (a book) in order to read it cursorily.

(travel) To hitchhike

To soil or wear with the thumb or the fingers; to soil, or wear out, by frequent handling.

To manipulate (an object) with the thumb; especially, to pull back the hammer or open the cylinder of a revolver.

To fire (a single action revolver) quickly by pulling the hammer while keeping the trigger depressed.

Synonyms

• (to turn pages): browse, leaf, page, peruse

Source: Wiktionary

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Thumb, n. Etym: [OE. thombe, thoumbe, , AS. ; akin to OFries. th, D. duim, G. daumen, OHG. d, Icel. , Dan. tommelfinger, Sw. tunne, and perhaps to L. tumere to swell. *56. Cf. Thimble, Tumid.]

Definition: The short, thick first digit of the human hand, differing from the other fingers in having but two phalanges; the pollex. See Pollex. Upon his thumb he had of gold a ring. Chaucer. Thumb band, a twist of anything as thick as the thumb. Mortimer.

– Thumb blue, indigo in the form of small balls or lumps, used by washerwomen to blue linen, and the like.

– Thumb latch, a door latch having a lever formed to be pressed by the thumb.

– Thumb mark. (a) The mark left by the impression of a thumb, as on the leaves of a book. Longfellow. (b) The dark spot over each foot in finely bred black and tan terriers.

– Thumb nut, a nut for a screw, having wings to grasp between the thumb and fingers in turning it; also, a nut with a knurled rim for the same perpose.

– Thumb ring, a ring worn on the thumb. Shak.

– Thumb stall. (a) A kind of thimble or ferrule of iron, or leather, for protecting the thumb in making sails, and in other work. (b) (Mil.) A buckskin cushion worn on the thumb, and used to close the vent of a cannon while it is sponged, or loaded.

– Under one's thumb, completely under one's power or influence; in a condition of subservience. [Colloq.]

Thumb, v. t. [imp. & p. p. Thumbed; p. pr. & vb. n. Thumbing.]

1. To handle awkwardly. Johnson.

2. To play with the thumbs, or with the thumbs and fingers; as, to thumb over a tune.

3. To soil or wear with the thumb or the fingers; to soil, or wear out, by frequent handling; also, to cover with the thumb; as, to thumb the touch-hole of a cannon. He gravely informed the enemy that all his cards had been thumbed to pieces, and begged them to let him have a few more packs. Macaulay.

Thumb, v. i.

Definition: To play with the thumb or thumbs; to play clumsily; to thrum.

Source: Webster’s Unabridged Dictionary 1913 Edition

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