retardant

[ri-tahr-dnt]

re·tard·ant

[ri-tahr-dnt]
noun Chemistry.
1.
any substance capable of reducing the speed of a given reaction.
adjective
2.
retarding or tending to retard (usually used in combination): fire-retardant construction materials.

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Retardant is always a great word to know.
So is titanic. Does it mean:
the molecular weight of a substance expressed in grams; a gram molecule
of or containing titanium, especially in the tetravalent state or three valence state

Origin:
1635–45; retard + -ant

re·tard·ance, re·tard·an·cy, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Collins
World English Dictionary
retardant (rɪˈtɑːdənt)
 
n
1.  a substance that reduces the rate of a chemical reaction
 
adj
2.  having a slowing effect

Collins English Dictionary - Complete & Unabridged 10th Edition
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