Definify.com
Webster 1913 Edition
Senocular
Se-noc′u-lar
,Adj.
 [L. 
seni 
six each (fr. sex 
six) + oculus 
eye.] Having six eyes. 
[R.] 
Derham.
 Webster 1828 Edition
Senocular
SENOC'ULAR
,Adj.
                     Most animals are binocular, spiders are octonocular, and some are senocular.