naked eye


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*naked eye

the human eye, unassisted by optics, such as a telescope, microscope, or spectacles. (*Typically: appear to ~; look to ~; see with ~; visible to~.) I can't see the bird's markings with the naked eye. The scientist could see nothing in the liquid with the naked eye, but with the aid of a microscope, she identified the bacteria. That's how it appears to the naked eye.
See also: eye, naked

naked eye

Sight unassisted by an instrument such as a microscope or telescope. For example, These insects are too small to be seen with the naked eye. This expression was first recorded in 1664.
See also: eye, naked
References in periodicals archive ?
27) when it will look like a bright red star to the naked eye.
At the other end of the scale are the fainter objects, the faintest star we can see with the naked eye in our location is about magnitude 6,although from a dark site I have seen down to Mag 7.
Space programmes have now proved the Great Wall can be seen with the naked eye from a maximum orbit of 180 miles above Earth.
The specimen that shows the most damage to the naked eye (#1A) has a fitted temperature profile curve that indicates a large amount of damage, as the peak time is significantly delayed and the peak temperature difference is over 63 % less than for the undamaged specimen in the set.
Into the meat of the book, and the 188 challenges are organised initially into six categories; naked eye, binocular, small-scope (3 to 5-inch [75-125mm] telescope), medium-scope (6 to 9.
These white lines are the tiny patterns found on the surface of a plant petal, invisible to the naked eye.
The Bell Strip can be manufactured to match the exterior of any building --making it almost completely unnoticeable to the naked eye.
Africanized bees, which have been migrating from South America since the 1950s after the hybrids were bred, look just like European honeybees to the naked eye, experts said.
Here she uncovered a fascinating landscape of gritty minutiae that serves as proxy for the body but is invisible to the naked eye.
The human body is made of 10,000 trillion cells, most of which are too small to see with the naked eye.
However, the study reported that even the best performers reduced the average depth of wrinkles by less than 10 percent and stated that this was "a magnitude of change that was barely visible to the naked eye.
AUO" or the "Company") (TAIEX: 2409; NYSE: AUO) announced today that the Company will showcase the world's first deadzone-free naked eye 3D notebook panel at FPD International 2010.
There was a half-Moon that night, but two or three days earlier a perceptive observer may have found it possible to see Vesta with the naked eye.
They are more attractive to the naked eye," the Mirror quoted her as saying.
The lice, which are visible to the naked eye, attach to fish and draw blood and nutrients.