Mid 17th century; earliest use found in John Bulwer (bap. 1606, d. 1656), medical practitioner and writer on deafness and on gesture. From classical Latin ūnoculus one-eyed + -ar.
Definition of unocular in US English:
unocular
adjectivejuːˈnɒkjʊlə
rare
One-eyed; of or relating to one eye.
Origin
Mid 17th century; earliest use found in John Bulwer (bap. 1606, d. 1656), medical practitioner and writer on deafness and on gesture. From classical Latin ūnoculus one-eyed + -ar.