411 REFERENCE · Wiktionary
PAIN
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Appendix:Variations of "pain"
English
Etymology
Backformation from en pain en pain in the ass
Noun
Pan-assay interference compounds
+ PAINS
en pan-assay interference compound.
Anagrams
en ainp APNI NIPA PANI nipa pian pina piña