Definition of sickener in English:

sickener

Syllabification: sick·en·er
Pronunciation: /ˈsikənər
 
/

noun

1 informal Something that causes disgust or severe disappointment.
More example sentences
  • We have done wonders to get to host the conference and it would be a real sickener if financial problems wreck all the hard work.
  • Mr Rothwell added: ‘It's a real sickener and I would appeal to the thieves to at least give us back the things which are clearly of no use to them, or to anyone else.’
  • We thought we had a great chance after that, of winning Leinster, but Louth beat us by a point and that was a real sickener.
2 (the sickener) A poisonous toadstool with a red cap and a white or cream-colored stem and gills, found commonly in both Eurasia and North America.
  • Genus Russula, family Russulaceae, class Hymenomycetes, in particular R. emetica

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