There are 2 main definitions of conus in English:

conus1

Syllabification: co·nus
Pronunciation: /ˈkōnəs
 
/

noun (plural coni /ˈkōˌnī/)

Anatomy
1 (in full conus arteriosus /ärˌti(ə)rēˈōsis/) The upper front part of the right ventricle of the heart.
More example sentences
  • 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.
  • 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.
  • A conus artery arising from the aorta was found in 50% of 651 subjects.
2 (in full conus medullaris /ˌmedlˈe(ə)ris/) The conical lower extremity of the spinal cord.
More example sentences
  • 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'.

Definition of conus in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

There are 2 main definitions of conus in English:

CONUS2

Syllabification: CO·NUS
Pronunciation: /ˈkōnəs
 
/

abbreviation

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

Origin

acronym, from contiguous United States.