Main definitions of conus in English

: conus1CONUS2

conus1

noun

Anatomy
  • 1The upper front part of the right ventricle of the heart.

    • ‘Since the aorta and the pulmonary artery develop from a common conus arteriosus, irregular and imperfect development of the septum between them may also produce variations.’
    • ‘A conus artery arising from the aorta was found in 50% of 651 subjects.’
    • ‘The heart appears to be the most primitive of all adult vertebrates, with the auricle, ventricle and conus arteriosus arranged in straight line, rather than being doubled over one another.’
  • 2The conical lower extremity of the spinal cord.

    • ‘The spinal cord tapers caudally to become the conus medullaris.’
    • ‘An MRI (not shown) showed the conus medullaris to be at L1 - L2, and the sacrum to be dysplastic.’
    • ‘A spinal ultrasound from the second day of life (not provided) showed the spinal cord conus to be normally positioned at L1.’

Origin

Late 19th century: from Latin, literally ‘cone’.

Pronunciation

conus

/ˈkōnəs/

Main definitions of conus in English

: conus1CONUS2

CONUS2

Military
  • The 48 contiguous states in the United States (that is, all the states except Alaska and Hawaii).

Origin

Acronym, from con tiguous U nited S tates.

Pronunciation

CONUS

/ˈkōnəs/