See Also: duel 1, noun(dictionary)
brightness(medicine)
Brightness constancy(health)
brightness difference threshold(medicine)
duel(1)(dictionary)
duel(encyclopedia)
duel(2)(dictionary)
duel 2, verb(dictionary)
Hegg Memorial Health Center Avera Health(health)
Divine Providence Health Center Avera Health(health)

Brightness constancy (health) and duel 1, noun (oh)


Brightness constancy (health)


The perceived brightness of real objects in a natural environment is largely independent of changes in the overall illumination.









duel 1, noun (oh)



[Date: 1400-1500; Language: Medieval Latin; Origin: duellum, from (influenced by duo 'two') Latin bellum 'war']
a fight with weapons between two people, used in the past to settle a quarrel
::The officer challenged him to a duel .
a situation in which two people or groups are involved in an angry disagreement
::a verbal duel