Relating to or affecting both ears, especially in acoustics or audiology.
From Greek 'di-' (two) + 'otikos' (relating to the ear, from 'ous' meaning ear) + '-ic' (suffix indicating relation). This medical and scientific term emerged in 20th-century audiology.
When you wear headphones and hear the same sound in both ears at the same volume, that's a 'diotic' signal—but if the sound is louder in one ear, that's called 'dichotic' and your brain uses it to figure out where the sound is coming from!
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