ball of the thumb

noun

The fleshy portion, opposite the nail, of the first segment (first phalange) of the human thumb.

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Meanings

nounball of the thumb (plural balls of the thumb)

plural balls of the thumb

  1. informalanatomyThe fleshy portion, opposite the nail, of the first segment (first phalange) of the human thumb.
  2. anatomyThe most fleshy portion of the palm of the human hand, located adjacent to the second joint of the thumb: the thenar eminence.

Translations

Dutch duimmuis
  • duimmuispart of the palm
Cite this entry
APA

ball of the thumb. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/ball%20of%20the%20thumb

MLA

“ball of the thumb.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ball%20of%20the%20thumb. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “ball of the thumb,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/ball%20of%20the%20thumb.

Source: ball of the thumb on Wiktionary, CC BY-SA 4.0.