det·ri·men·tal

[de-truh-men-tl]
adjective
1.
causing detriment; damaging; harmful.
noun
2.
a detrimental person or thing.

Origin:
1650–60; detriment + -al1

det·ri·men·tal·i·ty, det·ri·men·tal·ness, noun
det·ri·men·tal·ly, adverb
non·det·ri·men·tal, adjective
non·det·ri·men·tal·ly, adverb
pre·det·ri·men·tal, adjective
un·det·ri·men·tal, adjective
un·det·ri·men·tal·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To detrimental
00:10
Detrimental is an SAT word you need to know.
So is peripheral. Does it mean:
theoretical;not concrete
concerned with relatively minor, irrelevant, or superficial aspects of the subject in question.
Collins
World English Dictionary
detrimental (ˌdɛtrɪˈmɛntəl) [Click for IPA pronunciation guide]
 
adj (when postpositive, foll by to)
harmful; injurious; prejudicial: smoking can be detrimental to health
 
detri'mentally
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
There is no evidence that eating microwaved foods is detrimental to humans or
  animals.
Desalinization is energy intensive and produces an extremely concentrated brine
  byproduct with detrimental environmental effects.
Even a shift in a few degrees in temperature can be detrimental to coral,
  causing it to bleach and even die.
The same mentality believes in alternative medicine that is often detrimental
  or even conventional medication that is unnecessary.
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