monotic
/mɒˈnɒtɪk/ /mɒˈnəʊtɪk/Physiology and Psychology
adjective
Involving the presentation of a stimulus to one ear only; designating such a stimulus. Also more generally: using one ear only; monaural.
Origin
Late 19th century; earliest use found in The Monist: a quarterly magazine devoted to the philosophy of science. From mono- + otic, after German monotisch.