sokyū
1. retroactivity; retroaction
Noun
#103370
go upstream, retrace the past
1. retroactivity; retroaction
1. retroactive
1. going to the source; tracing to the origin
1. redemption; recourse
1. retroactive law; retrospective law
1. anadromous fish (fish that migrates upstream, e.g. salmon)
1. right of recourse; right for redemption
1. retrospective bibliography