bare-eye

Without optical aid

Bare-eye means without optical aids—no telescope, binoculars, or magnifying glass.

Astronomers and birdwatchers use it to describe what's visible to unaided vision: Saturn's rings aren't visible to the bare eye.

The term is interchangeable with naked eye, though bare-eye more often appears as a compound modifier: bare-eye observation, bare-eye astronomy.

unaided

unassisted

Without outside help

direct observation · visual acuity · plain sight · discern · detect · spot · notice · perceive · recognize · visible

limits

resolution

Formal decision or determination

visibility · detectable · perceptible · distinguishable · imperceptible · invisible · microscopic · magnitude · distant · faint

ornithology

antbird

Tropical insectivore following swarms

understory · insectivore · avian · species · birdwatching · neotropical · identification · songbird · foraging · endemic

Opposites
optical enhancement

bare-eyemagnified

Increased in apparent size

telescopic · microscopic · amplified · aided · enhanced vision

visual augmentation method

bare-eyeunder a microscope

infrared · telescopically · microscopically · thermographic

Family

bare, eye, bared, barer, barest, barely, bareness, baring, eyes

Familiarity
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Used worldwide · Timeless · Concrete · Rated G