adj. Applied to the interneural plates in the vertebral column of many cartilaginous fish.
the GNU version of the Collaborative International Dictionary of English
adj. Between crura; -- applied especially to the interneural plates in the vertebral column of many cartilaginous fishes.
The Century Dictionary and Cyclopedia
In zoology: Of or pertaining to the space between the crura or rami of the under jaw; interramal; submental.
Situated between the crura cerebri, as the interpeduncular space or area at the base of the brain.
Word Usage
"There is also evidence that penetration was often avoided by having the erastes face his beloved and place his penis between the thighs of the eromenos, which is known as intercrural sex."