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 History of this Word

"thumb" is from "thuma", spoken by people in England during 450-1100 A.D.

"head" is from "headfod", spoken by people in England during 450-1100 A.D.

Words related to this meaning

grammar is noun

"thumb head" is a type of head

Definition

thumb head illustration thumb head illustration thumb head illustration Type of head for a screw or bolt. Allows screw or bolt to be rotated without using a tool. Designed to be held by a person's fingers. There are many different designs that allow head to be easily held with only a person's fingers.

Examples of how the word is used

thumb head illustration thumb-head configurations are standard
thumb head illustration The shallow slot for the head of the thumb screw is important or you can't operate it with one hand