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Webster 1913 Edition


Colloid

Col′loid

,
Adj.
[Gr.
κόλλα
glue +
-oid
. Cf.
Collodion
.]
Resembling glue or jelly; characterized by a jellylike appearance; gelatinous;
as,
colloid
tumors
.

Col′loid

,
Noun.
1.
(Physiol. Chem.)
A substance (as albumin, gum, gelatin, etc.) which is of a gelatinous rather than a crystalline nature, and which diffuses itself through animal membranes or vegetable parchment more slowly than crystalloids do; – opposed to crystalloid.
2.
(Med.)
A gelatinous substance found in colloid degeneration and colloid cancer.
Styptic colloid
(Med.)
,
a preparation of astringent and antiseptic substances with some colloid material, as collodion, for ready use.