ampyx

Century Dictionary and Cyclopedia

1. n. In Greek antiquity: A general term for a band or fillet or other female head-dress worn encircling the head, particularly when made of metal, or bearing in front an ornament of metal. A head-band for horses; also, an ornamental plate of metal covering the front of a horse's head.
2. n. [NL.] A species of trilobite or fossil crustacean, found chiefly in Lower Silurian strata.
3. n. In the anatomic structure of the Devonian fish Palæospondylus, an element of the anterior part of the skull.

Wiktionary

1. n. A woman's headband (sometimes of metal), for binding the front hair in Ancient Greece.

GNU Webster's 1913

1. n. (Greek Antiq.) A woman's headband (sometimes of metal), for binding the front hair.