/ˈäksəpət/
Noun, pl. occipita
1. The anatomical term for the posterior (back) portion of the head or skull. In insects, the occiput is the posterior part of the head capsule. (wikipedia.org)
2. The back part of the head or skull (contradistinct from sinciput). (wiktionary.org)
Word origin: From Latin occiput, occipitium “the back part of the head”, from ob “over against” + caput “head”.