[ vas-tuhs ]

noun,plural vas·ti [vas-tahy]. /ˈvæs taɪ/. Anatomy.
  1. any of several muscles in the front part of the thigh constituting part of the quadriceps muscle, the action of which assists in extending the leg.

Origin of vastus

<Latin: vast

Words Nearby vastus Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use vastus in a sentence

  • Ossification in the crureus or vastus lateralis muscle has been frequently observed as a result of a kick from a horse.

    Manual of Surgery | Alexis Thomson and Alexander Miles
  • Nothing but the musculus vastus externus is so much as touched.

    Fathers and Sons | Ivan Sergeevich Turgenev
  • vastus animus immoderata, incredibilia, nimis alta semper cupiebat.

    De Bello Catilinario et Jugurthino | Caius Sallustii Crispi (Sallustius)
  • In the dog and the cat the vastus externus is the most voluminous of the three portions which constitute the triceps muscle.

  • The two fasciculi then pass towards the knee, being in relation with the rectus and the vastus internus of the triceps.