ˈbad.ə̇l- noun
Etymology: International Scientific Vocabulary bat- (from New Latin Batis, genus of fish) + -yl — more at batoidea
: a colorless crystalline alcohol C 18 H 37 OCH 2 CH(OH)CH 2 OH obtained especially from many shark-liver oils and ray-liver oils and from the yellow marrow of cattle bones; glycerol α-octadecyl ether