from The Century Dictionary and Cyclopedia
- The iliac muscle, occupying the venter of the ilium or iliac fossa, and passing over the brim of the pelvis to be inserted with the psoas magnus into the trochanter minor of the femur. See cut under muscle.
- In ornith., the technical specific name of the redwing or red-winged thrush, Turdes iliacus: probably given from the coloration of the flanks.
Sorry, no etymologies found.