反散射 fǎnsǎnshè backscatter Origin Definitions Defs Strokes Stroke Words Sentences Sents 反 fǎn noun opposite opposite; reverse; contrary; inside out or upside down散射 sǎnshè scattering (physics) the phenomenon of light, waves, or particles being deflected into various directions due to an uneven medium; also known as 乱反射 luànfǎnshè