Definition of myometrium in US English:

myometrium

noun

Anatomy
  • The smooth muscle tissue of the uterus.

    • ‘The myometrium is a thick coat containing smooth muscle and abundant connective tissues.’
    • ‘A prominent smooth muscle component, reminiscent of uterine wall myometrium, accounted for most of the cyst wall.’
    • ‘Both types of molar pregnancies can become invasive and involve the adjacent myometrium and/or the blood vessels.’
    • ‘Lesions have been found restricted to the serosa, myometrium, endometrium, and combinations thereof, as well as transmural.’
    • ‘Contraction may be sustained, as in the smooth muscle cells present in the blood vessels or airways, or rhythmic, as in the cells of the myometrium and gastrointestinal tract.’

Origin

Early 20th century: modern Latin, from myo- ‘muscle’ + Greek mētra ‘womb’.

Pronunciation

myometrium

/ˌmīəˈmētrēəm/