The Collaborative International Dictionary
Reversed positive
Reversed \Re*versed"\ (r[-e]*v[~e]rst"), a.
Turned side for side, or end for end; changed to the contrary; specifically (Bot. & Zo["o]l.), sinistrorse or sinistral; as, a reversed, or sinistral, spiral or shell.
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(Law) Annulled and the contrary substituted; as, a reversed judgment or decree.
Reversed positive or Reversed negative (Photog.), a picture corresponding with the original in light and shade, but reversed as to right and left.
--Abney.