Medical Definition of cornu
: a horn-shaped anatomical structure (as either of the lateral divisions of a bicornuate uterus, one of the lateral processes of the hyoid bone, or one of the gray columns of the spinal cord)
Learn More about cornu
Britannica.com: Encyclopedia article about cornu
Seen and Heard
What made you want to look up cornu? Please tell us where you read or heard it (including the quote, if possible).