cones


Also found in: Dictionary, Thesaurus, Idioms, Encyclopedia, Wikipedia.

cones

The tiny light-sensitive transducers of the RETINA that are present in greatest concentration in the central part, the macula. Cones are less sensitive than the more peripherally placed, colour-blind rods, but are capable of distinguishing three primary colours.

Cones

Receptor cells that allow the perception of colors.
Mentioned in: Color Blindness
References in classic literature ?
"The spherical cap of the small cone is of platinum, so as not to melt by the action of the cylinder and blow-pipe, for the latter are placed upon the bottom of the iron tank in the midst of the helicoidal spiral, and the extremity of their flame will slightly touch the cap in question.
The cylinder once lighted, the hydrogen in the spiral and in the concave cone becomes heated, and rapidly ascends through the pipe that leads to the upper part of the balloon.
Fact.MR has announced the addition of the "Safety Cones Market Forecast, Trend Analysis & Competition Tracking - Global Market insights 2018 to 2028"report to their offering.
Through the experiment, the researchers saw how the water caused the clay balls to erode and turn into cones.
Wayne VanAntwerpen, crusher technology product manager, said, "The new range of TG Spider Bearing cones, being offered in both the large feed secondary and the 'all-rounder" tertiary configuration, will put us in a complete class of our own.
YOU WILL NEED: Small pine cones Paints (acrylic works best) Wooden beads (ours were approx 1.5cm across) Fabric leaves in different colours (from craft or home shops) Glue METHOD: 1.
Here it activates certain photoreceptor cells called cones and rods.
Cones are designed to complement the sweet, creamy taste of ice cream.
Brakes is shaking up the menu with its new Cone Bakes, versatile pastry cones that can be filled with sweet or savoury, hot or cold ingredients to fire up the interest in hand-held, on-the-go snacks.
CHITRAL -- Peasant councillor Rahmat Ilahi has demanded ban on premature harvest of chalghuza as detaching of cones from branches of trees destroyed the buds.
One resident put traffic cones along Crockford Park Road inAddlestonein an apparent bid to stop non-residents parking there.
Over Two Hundred Cones were served during these two events, compliments of the Bear Family Restaurants and Owner/Operator David Bear.