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obsolescent

[ob-suh-les-uh nt] /ˌɒb səˈlɛs ənt/
adjective
1.
becoming obsolete; passing out of use, as a word:
an obsolescent term.
2.
becoming outdated or outmoded, as machinery or weapons.
3.
Biology. gradually disappearing or imperfectly developed, as vestigial organs.
Origin
1745-1755
1745-55; < Latin obsolēscent- (stem of obsolēscēns, present participle of obsolēscere to fall into disuse). See obsolete, -escent
Related forms
obsolescently, adverb
Can be confused
archaic, obsolescent, obsolete.
obsolescent, obsolete.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for obsolescently

obsolescent

/ˌɒbsəˈlɛsənt/
adjective
1.
becoming obsolete or out of date
Derived Forms
obsolescence, noun
obsolescently, adverb
Word Origin
C18: from Latin obsolescere; see obsolete
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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Word Origin and History for obsolescently

obsolescent

adj.

1755, from Latin obsolescentum (nominative obsolescens), present participle of obsolescere "fall into disuse" (see obsolete).

Online Etymology Dictionary, © 2010 Douglas Harper
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