Skip to Main Content

We have a new app!

Take the Access library with you wherever you go—easy access to books, videos, images, podcasts, personalized features, and more.

Download the Access App here: iOS and Android. Learn more here!


(krō″mă-tō′sĭs) [″ + osis, condition] 1. Pigmentation. 2. The pathological deposition of pigment in any part of the body where it is not normally present, or excessive deposition where it is normally present.


(krō-mă-tū′rē-ă) [″ + ouron, urine] Abnormal color of the urine.


A variant of chrome- used at the end of a word, e.g., cytochrome, karyochrome, lipochrome.


(krō″mĕs-thē′zē-ă) [″ + aisthesis, sensation] The association of color sensations with words, taste, smell, or sounds.

chromidrosis, chromhidrosis

(krō″mĭd-rō′sĭs) [″ + hidros, sweat] Excretion of colored sweat. Red sweat may be caused by an exudation of blood into the sweat glands or by color-producing microorganisms in those glands. This disorder is treated by relief of the underlying condition.

 ETIOLOGY: Colored sweat may be due to ingestion or absorption of certain substances, such as pigment-producing bacteria. It may also be caused by certain metabolic disorders.

 SYMPTOMS: Colored sweat may be localized in the eyelids, breasts, axillae, and genitocrural regions, and occasionally on the hands and limbs. It may be grayish, bluish, violaceous, brownish, or reddish; it collects on skin, giving a greasy, powdery appearance to parts.


(krō′mē-ŭm) [Fr. chrome, fr. Gr. chrōma, color + -ium (1)] SYMB: Cr. A very hard metallic element, atomic weight (mass) 51.996, atomic number 24. It is an essential trace element required for normal uptake. Chromium works with insulin to regulate the release of energy from glucose.

c. picolinate Cr(C6H4NO2)3, an essential nutrient involved in the metabolism of carbohydrates and lipids. It has been popularly promoted as a diet aid and to enhance lean body strength and mass.


A radioactive isotope of chromium. The half-life is 27.7 days. Red blood cells are labeled with this isotope in order to study their length of life in the body.

chromium poisoning

SEE: under poisoning.


(krō′mō-blăst) [Gr. chroma, color, + blastos, germ] An embryonic cell that becomes a pigment cell.


(krō″mō-blăs″tō-mī-kō′sĭs) [″ + ″] Chromomycosis.


(krō′mō-sĕn″tĕr) [″ + kentros, middle] Karyosome.


(krō″mō-dăk″rē-ōrē′ă) [″ + dacryon, tear, + rhoia, flow] A flow of blood-stained tears.


(krō″mō-en-dos′kŏ-pē) [chromo- + endoscopy] The use of tissue-staining dyes, such as methylene blue, to aid in the ...

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.