How to Use rectus in a Sentence

rectus

noun
  • Because that removes the base of support, all of your core (your rectus abdominis, obliques, transverse abdominis, and even pelvic floor) has to really fire to keep you from tipping over.
    Christa Sgobba, SELF, 5 Sep. 2025
  • Unlike the rectus abdominis, which covers the front of the abdomen and mainly bends your torso forward, your obliques control rotation, resist unwanted twisting and keep your rib cage stacked over your pelvis.
    Dana Santas, CNN Money, 17 Sep. 2025
  • During pregnancy, the two vertical muscles running down the front of your abdomen, the rectus abdominis muscles, must stretch to accommodate your growing baby.
    Jennifer Byrne, Popular Science, 5 Mar. 2026
  • Your core muscles are also working, including your rectus abdominis (across the front of your abdomen), obliques (sides of your abdomen), and transverse abdominis (deep muscles that wrap around the sides of your abdomen).
    Christa Sgobba, Health, 7 Apr. 2026
  • Unlike other common ab exercises, such as crunches and sit-ups, that primarily just work your rectus abdominis (the front-side ab muscles that form a six pack), planks engage multiple core muscles at once.
    Jenny McCoy, Outside, 23 Mar. 2026

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'rectus.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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