binocular
UK[bɪˈnɒk.jə.lər]US[bɪˈnɑː.kjə.lər]
adj
involving, using, or designed for both eyes
n
(usually binoculars) an optical instrument with a lens for each eye, used for viewing distant objects
Morpheme Breakdown
bin
ocul
ar
bin
two
ocul
eye
ar
adjective suffix
Etymology
the word binocular is a modern scientific term formed from classical latin components. it combines 'bin-', a combining form of 'bini' meaning 'twofold' or 'two each', with 'ocul-', the stem of 'oculus' meaning 'eye'. the suffix '-ar' is a latin-derived adjectival ending, similar to '-al', indicating relation or pertaining to. thus, the literal construction "pertaining to two eyes" directly and logically describes the instrument's fundamental characteristic of using dual, coordinated lenses to produce a single, magnified stereoscopic image, enhancing depth perception for the viewer.
Analysis
Structure: bin (two) + ocul (eye) + ar (adjective suffix)
bin (latin, meaning 'two'), ocul (latin, meaning 'eye'), ar (latin, adjective-forming suffix meaning 'pertaining to')
Examples
binocular vision is crucial for judging depth and distance.
he raised his binoculars to get a better view of the rare bird.
the laboratory is equipped with a high-powered binocular microscope.