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A white solid oligomer of formaldehyde, (CH2O)n, where n is at least 6, used as a disinfectant, fumigant, and fungicide.


(ˌpærəfɔːˈmældɪˌhaɪd) or


(Elements & Compounds) a white amorphous solid polymeric form of formaldehyde: used as a convenient source of formaldehyde and as a fumigant. Formula: (CH2O)n, where n lies between 6 and 50


(ˌpær ə fɔrˈmæl dəˌhaɪd, -fər-)

a white, crystalline polymer of formaldehyde, (HCOH)n, used chiefly as an antiseptic. Also called par′a•form` (-ˌfɔrm)
References in periodicals archive ?
All the tissues fixed in 4% paraformaldehyde were dehydrated and embedded in paraffin.
Paraformaldehyde can cause oversensitivity and suppression [15,16,17,18].
7) Abs (Becton Dickinson, USA) and then fixed with 4% paraformaldehyde for 10 min.
The right kidneys of fetuses were removed and fixed with 4% paraformaldehyde and made into paraffin block.
White and black skin tissues were fixed in 4% paraformaldehyde, and then the paraffinized skin tissue sections (8 pm) were deparaffinized.
Cells were fixed with 4% paraformaldehyde and stained with crystal violet.
For fluorescence observation, cells were fixed with 4% paraformaldehyde in HBSS for 15 min at RT and afterwards rinsed with PBS (3x5 min, RT).
The tissues were fixed with 3% paraformaldehyde and 2% sucrose in PBS and permeabilized with 0.
Operations at its methanol plant and dimethylformamide plant restarted, while its paraformaldehyde plant will recommence production soon, Chemanol said in a bourse statement.
Then embryos were fixed with 4% paraformaldehyde in TPBS for 30 min, permeabilized at room temperature for 30 min, and blocked for 1 h at room temperature in blocking solution (PBS + 0.
The soft parts of the adult and juvenile pearl oysters with shells were fixed with 4% paraformaldehyde in phosphate-buffered saline (PBS).