| Learning / English Dictionary |
FORMALDEHYDE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A colorless poisonous gas; made by the oxidation of methanol
Synonyms:
Classified under:
Hypernyms ("formaldehyde" is a kind of...):
aldehyde (any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids)
gas (a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely)
Context examples:
Environmentally, formaldehyde may be found in the atmosphere, smoke from fires, automobile exhaust and cigarette smoke.
(Formaldehyde, NCI Thesaurus)
A tissue fixative consisting of formaldehyde, glacial acetic acid, and picric acid.
(Bouin's Fixative, NCI Thesaurus)
A person who treats dead bodies with embalming fluid (a chemical like formaldehyde) to keep them from decaying.
(Embalmer, NCI Dictionary)
Formaldehyde acts as an antibacterial agent against gram-positive and gram-negative organisms.
(Methenamine Hippurate, NCI Thesaurus)
In its typical form, formalin is 37% formaldehyde by weight (40% by volume), 6-13% methanol, and the rest water.
(Formaldehyde Solution, NCI Thesaurus)
Formaldehyde is readily soluble in water and is commonly distributed as a 37% solution in water; formalin, a 10% solution of formaldehyde in water, is used as a disinfectant and to preserve biological specimens.
(Formaldehyde, NCI Thesaurus)
Formaldehyde probably exerts its antibacterial effect by denaturation of protein.
(Methenamine Hippurate, NCI Thesaurus)
Depending on the urinary concentrations, formaldehyde is either bactericidal or bacteriostatic.
(Methenamine Hippurate, NCI Thesaurus)
Formaldehyde urinary concentrations are dependent on urine pH, volume, and flow rate.
(Methenamine Hippurate, NCI Thesaurus)
