1. (Science: botany) Turned side for side, or end for end; changed to the contrary; specifically, sinistrorse or sinistral; as, a reversed, or sinistral, spiral or shell.
2. Annulled and the contrary substituted; as, a reversed judgment or decree.
(Science: photography) Reversed positive or negative, a picture corresponding with the original in light and shade, but reversed as to right and left.