hydrocolloid /hy·dro·col·loid/ (-kol´oid) a colloid system in which water is the dispersion medium.
hydrocolloid,
hydrocolloid (hī´drōkol´oid),
hy·dro·col·loid (h  dr -k l oid)n. 1. A substance that forms a gel with water. 2. Such a substance used to take dental impressions, especially one derived from marine kelp. |
hydrocolloid,
a gelatinous colloid in which water is the dispersion material. It is used in dentistry as an impression material.
hydrocolloid (hī´drōkol´oid),
n.pl 1. the materials listed as colloid solids with water; used in dentistry as elastic impression materials. They can be reversible or irreversible.
n.pl 2. an agar-base impression material.
n.pl 2. an agar-base impression material.
hydrocolloid, irreversible (alginate),
n a type whose physical condition is changed by a chemical action that is not reversible. It is an impression material that is elastic when set. See also alginate.
hydrocolloid, reversible (agar-agar type),
n a type whose physical condition is changed by temperature. The material is made fluid by heat and becomes an elastic solid on cooling.
hydrocolloid
a colloid in which water is the dispersion medium.
hydrocolloid wound dressing
impermeable to oxygen and carbon dioxide, the colloid interacts with tissue fluid to form a nonadhesive gel.
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