The Collaborative International Dictionary
Intercrural
Intercrural \In`ter*cru"ral\, a. (Anat.) Between crura; -- applied especially to the interneural plates in the vertebral column of many cartilaginous fishes.
Douglas Harper's Etymology Dictionary
intercrural
"between the thighs," or in madicine, "between leg-like structures," 1690s, from inter- + Latin crus "shin, shinbone leg; supports of a bridge."
Wiktionary
intercrural
a. 1 Taking place or located between the legs. 2 (context anatomy English) Applied to the interneural plates in the vertebral column of many cartilaginous fish.