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decadelong

[dek-eyd-lawng; British also duh-keyd-lawng] /ˈdɛk eɪdˌlɔŋ; British also dəˈkeɪd lɔŋ/
adjective
1.
lasting for a decade:
After a decadelong study, the drug has finally been approved by the FDA.
Also, decade-long.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for decadelong
  • But new evidence uncovered during a decadelong study challenges the long-held belief.
  • It's a decadelong health care budget debacle that keeps getting more expensive for taxpayers.

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