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approaching black; reflecting little light.

dark cutting beef
the meat is much darker than normal on its cut surface; caused by preslaughter stress. Called also dark, firm dry muscle, DFD.
dark firm, dry muscle
see dark cutting beef (above).
dark film
x-ray film that has been overexposed, or grossly overdeveloped.
film dark spots
caused by developer splashing on the x-ray film causing prolonged local development.
dark room
a room dedicated to the processing of film; must be light-proof, temperature stable and fitted with water and power.

Patient discussion about dark

Q. What health condition would produce blood and dark colored semen?

A. any inflammation in that area can cause that. from the urethra to the testis. here is a symptom checker that show you all the conditions that causes blood to show up in your semen and their other symptoms:

Q. very dark blood clots @ first sight of period? At first sight of period, instead of normal rosy spotting it's brownish spotting followed by small clots.

A. totally agree with hottie, most likely that will be in normal range of variation. unless you feel some unusual pain, then you need to find medical advice. but it is also suggested for you to go to your ob-gyn doctor for a regular checkup anyway.
stay healthy always..

Q. after a pedicure, the soles of my feet are dark w/freckles, skin is itchy/thick, my derm says its eczema,help! the pedicure was in fall, 2002. I mad a mistake and wore nylon boots during a storm, the dye never fully disappeared. I would scrub the soles of my feet until I couldn't walk. However, within the last 4 months both heels are itchy, thick, dark-er and now they both have dark legions/ freckles have formed.

A. Are you sure you are going to a clean sterile saloon? It is very important to make sure they use sterile tools for a pedicure because they can transfer fungal infections very easily. Either way you should see a dermatologist to get the right kind of cream treatment for your feet.

More discussions about dark
References in periodicals archive ?
SIFTING THROUGH Nonetheless, theorists who study galaxy formation maintain that the cold dark matter model isn't yet in peril.
In the cold dark matter theory, smaller structures form first, then they merge with each other to form more massive halos, and finally galaxies form within the halos.
Furthermore, several observations hint that the distribution of dark matter in galaxy clusters is spherical rather than football-shaped, as models of cold dark matter suggest.
To circumvent the mismatches, some theorists suggested that particles of cold dark matter interact with each other more strongly than astronomers had proposed.
The leading model presupposes that the universe is filled with an unseen, slowly moving substance called cold dark matter.
Thought to make up as much as 99 percent of the mass of the universe, cold dark matter easily gathers into clumps.
The hypothetical superheavy particle mentioned in the article would be a form of cold dark matter at least 10 trillion times more massive than a proton.
Slow-moving particles, generically known as cold dark matter, are the best candidates for this exotic material, Turner says.
These models assume that most of the matter in the cosmos is composed of invisible, slow-moving material known as cold dark matter and that this material has too low a density to keep the cosmos from expanding forever.
The new simulations follow a type of slow-moving dark matter, cold dark matter, whose ability to gather into clumps is believed to hasten the formation of galaxies.