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paraformaldehyde

[par-uh-fawr-mal-duh-hahyd, -fer-] /ˌpær ə fɔrˈmæl dəˌhaɪd, -fər-/
noun, Chemistry.
1.
a white, crystalline polymer of formaldehyde, (HCOH) n , from which it is obtained by evaporation of the aqueous solution: used chiefly as an antiseptic.
Also called paraform
[par-uh-fawrm] /ˈpær əˌfɔrm/ (Show IPA)
.
Origin of paraformaldehyde
1930-1935
First recorded in 1930-35; para-1 + formaldehyde
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for paraform

paraformaldehyde

/ˌpærəfɔːˈmældɪˌhaɪd/
noun
1.
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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