Definition from Wiktionary, the free dictionary
intercrural (not comparable)
- Taking place or located between the legs.
- Intercrural intercourse is frequently seen on ancient Greek ceramics.
- the female intercrural foramen
- (anatomy) Applied to the interneural plates in the vertebral column of many cartilaginous fish.
Derived terms 
- “intercrural, a.” listed in the Oxford English Dictionary [2nd Ed.; 1989]