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DISCOLORATION
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I. (noun)
Sense 1
Meaning:
The act of changing the natural color of something by making it duller or dingier or unnatural or faded
Synonyms:
discoloration; discolouration
Classified under:
Nouns denoting acts or actions
Hypernyms ("discoloration" is a kind of...):
change of color (an act that changes the light that something reflects)
Derivation:
discolor (change color, often in an undesired manner)
discolor (cause to lose or change color)
Sense 2
Meaning:
A soiled or discolored appearance
Example:
the wine left a dark stain
Synonyms:
discoloration; discolouration; stain
Classified under:
Nouns denoting attributes of people and objects
Hypernyms ("discoloration" is a kind of...):
appearance; visual aspect (outward or visible aspect of a person or thing)
Hyponyms (each of the following is a kind of "discoloration"):
scorch (a discoloration caused by heat)
bloodstain (a discoloration caused by blood)
iron mold; iron mould (a spot caused the staining with rust or ink)
mud stain (a stain produced by mud)
oil stain (a stain produced by oil)
tarnish (discoloration of metal surface caused by oxidation)
Derivation:
discolor (change color, often in an undesired manner)
discolor (cause to lose or change color)
Context examples:
Persistent, symmetric, and painless blue discoloration of the extremities.
(Acrocyanosis, NCI Thesaurus)
It manifests with white discoloration of the tongue and swelling, redness, and tenderness of the nails.
(Mucocutaneous Candidiasis, NCI Thesaurus)
Deformity or discoloration of a fingernail or toenail.
(Onychodystrophy, NCI Thesaurus)
Transient cyanotic discoloration of the hands and feet, especially fingers and toes, in a newborn.
(Neonatal Acrocyanosis, NCI Thesaurus)
Human ingestion of phenacetin can result in a bluish discoloration of the skin due to a lack of oxygen in the blood (cyanosis), dizziness and respiratory depression.
(Phenacetin, NCI Thesaurus)
A disorder characterized by bluish-black discoloration of the cartilaginous tissues due to accumulation of homogentisic acid.
(Ochronosis, NCI Thesaurus)
Signs and symptoms include painful cutaneous photosensitivity leading to blistering and scarring of the exposed skin areas, erythrodontia, red discoloration of urine, hemolytic anemia, and splenomegaly.
(Erythropoietic Protoporphyria, NCI Thesaurus)
Signs and symptoms include nausea, vomiting, severe abdominal pain and distension, urinary retention, port-wine urine discoloration, hypertension, tachycardia, muscle weakness, loss of sensation, anxiety, depression, and arm, leg and back pain.
(Acute Intermittent Porphyria, NCI Thesaurus)
Issues associated with a discoloration or destruction as a result of thermal decomposition of the device or its components.
(Burned Medical Device or Device Component, Food and Drug Administration)
The swelling may extend across the midline of the scalp and may exhibit discoloration or bruising.
(Caput Succedaneum, NCI Thesaurus)
