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Results found in several dictionaries: Collins, Collaborative Dictionary
pigeonnant, e 
  adj 
soutien-gorge pigeonnant  uplift bra 

Collaborative Dictionary     French-English
pigeonnant adj. uplift
Reverso Dict. 
soutien-gorge pigeonnant nm. uplift bra
Reverso Dict. 
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'pigeonnant' also found in translations in English-French dictionary
uplift bra n. le soutien-gorge pigeonnant
Reverso Dict. 

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