[1720–30; oppon(ent) + -ency]This word is first recorded in the period 1720–30. Other words that entered Englishat around the same time include: arrangement, cordon bleu, deadwood, stylus, syllabic
Examples of 'opponency' in a sentence
opponency
Colour fusion can be achieved by fusing one of the colour opponency channels with the monochrome image.
Rade M. Pavlović, Vladimir S. Petrović 2014, 'Fusion of colour and monochromatic images with edge emphasis', Vojnotehnički Glasnikhttp://aseestant.ceon.rs/index.php/vtg/article/view/2484. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Hue discrimination at detection thresholds reveals contribution of the third stage, colour-opponency, which determines colour categories, or unique hues.
Janus J. Kulikowski, Aušra Daugirdienė, Athanasios Panorgias, Ian J. Murray, RytisStanikūnas, Henrikas Vaitkevičius 2009, 'INFORMACIJOS APIE SPALVĄ APDOROJIMO SMEGENYSE STADIJOS', Psichologijahttp://www.journals.vu.lt/psichologija/article/view/2593. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)