DECUSSATION

Pronunciation (US): (GB):

Meaning:

An intersection or crossing of two tracts in the form of the letter X

Synonyms:

chiasm; chiasma; decussation

Classified under:

Nouns denoting body parts

Hypernyms ("decussation" is a kind of...):

anatomical structure; bodily structure; body structure; complex body part; structure (a particular complex anatomical part of a living thing and its construction and arrangement)

Hyponyms (each of the following is a kind of "decussation"):

chiasma opticum; optic chiasm; optic chiasma (the crossing of the optic nerves from the two eyes at the base of the brain)

Derivation:

decussate (cross or intersect so as to form a cross)