rectus abdominis muscle

noun

A pair of segmented skeletal muscle on the ventral aspect of a person's abdomen.

OriginLatin mūsculus rēctus abdōminis →
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Meanings

nounrectus abdominis muscle (countable and uncountable, plural rectus abdominis muscles)

plural rectus abdominis muscles

  1. countableuncountableanatomyA pair of segmented skeletal muscle on the ventral aspect of a person's abdomen.

Origin

  1. Latinmūsculus rēctus abdōminis
  2. Englishrectus abdominis muscle

Unadapted borrowing from Latin mūsculus rēctus abdōminis. Literally, “straight abdominal muscle”.

More words from Latin

Full word history & related roots →
Cite this entry
APA

rectus abdominis muscle. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/rectus%20abdominis%20muscle

MLA

“rectus abdominis muscle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rectus%20abdominis%20muscle. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “rectus abdominis muscle,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/rectus%20abdominis%20muscle.

Source: rectus abdominis muscle on Wiktionary, CC BY-SA 4.0.