from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A white solid polymer of formaldehyde, (HCHO)n, where n is at least 6, used as a disinfectant, fumigant, and fungicide.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A solid oligomer of formaldehyde that is used as a fumigant, and as a fixative in histology
from the GNU version of the Collaborative International Dictionary of English
- n. A polymer of formaldehyde obtained as a white crystalline substance by concentration of a formaldehyde solution. Formula (CH20)n. It dissolves in hot water with the release of formaldehyde, and is used as a disinfectant.
from The Century Dictionary and Cyclopedia
- n. A polymerized formaldehyde, (CH2O)n + H2O, formed by evaporation of an aqueous solution of formaldehyde. It is an amorphous solid that dissolves gradually in water. By heating with water at 130° C. it is reconverted to formaldehyde. It is used as an antiseptic.
Sorry, no etymologies found.