Dictionary

colloid

noun col·loid \ˈkä-ˌlid\

Definition of COLLOID

1
:  a gelatinous or mucinous substance found normally in the thyroid and also in diseased tissue
2
a :  a substance that consists of particles dispersed throughout another substance which are too small for resolution with an ordinary light microscope but are incapable of passing through a semipermeable membrane
b :  a mixture consisting of a colloid together with the medium in which it is dispersed <smoke is a colloid>
col·loi·dal \kə-ˈli-dəl, kä-\ adjective
col·loi·dal·ly adverb
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Origin of COLLOID

International Scientific Vocabulary coll- + -oid
First Known Use: circa 1852
Medical Dictionary

colloid

noun col·loid \ˈkäl-ˌid\

Medical Definition of COLLOID

1
:  a gelatinous or mucinous substance found in tissues in disease or normally (as in the thyroid)
2
a :  a substance consisting of particles that are dispersed throughout another substance and are too small for resolution with an ordinary light microscope but are incapable of passing through a semipermeable membrane b :  a mixture (as smoke) consisting of a colloid together with the medium in which it is dispersed
col·loi·dal \kə-ˈlid-əl, kä-\ adjective
col·loi·dal·ly \-əl-ē\ adverb

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