Relating to or characterized by aphotaxis; describing organisms or movements that turn away from light.
Adjectival form derived from 'aphotaxis' plus '-ic' suffix, following standard scientific nomenclature practices. The '-ic' ending comes from Latin and Greek and forms descriptive adjectives.
Cockroaches are famously aphototactic—they scatter when you turn on the light—which is why they were perfect test subjects for early neuroscience studying how nervous systems process and respond to environmental stimuli.
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