ocularium

/ˌɒk.jʊˈlɛəɹi.əm/

Etymology

From Latin oculārium.

ocularium means A slit in a helmet through which the wearer could see. Lexicurio rates it Sui generis — a strength score of 89 out of 100.

ocularium is pronounced /ˌɒk.jʊˈlɛəɹi.əm/.

noun

A slit in a helmet through which the wearer could see.“[…] A CLOSED HELMET, with blued surface; the skull-piece has a high roped comb, a deep visor pierced with the ocularium, bevor with annular piercings […]”
An elevated mound or "turret", found in some arachnids and other creatures, which contains simple eyes (ocelli).“Ocularium with paired armature; area III usually with a pair of spines or tubercles; femur IV entirely straight and unarmed (Figure 4.29a), posterior ozopore absent or much smaller than anterior ozopore (Brazilian Atlantic forest) ...”