| rivalry | Competition between two or more individuals for the same object or goal. Origin: L. Rivalis, competitor, rival (05 Mar 2000) |
|---|---|
| rivalry of retina | Simultaneous excitation of corresponding retinal areas of each eye by stimuli that differ in size, colour, shape, or luminance, making fusion impossible. (05 Mar 2000) |
| binocular rivalry | Alteration in perception of portions of the visual field when the two eyes are simultaneously and rapidly exposed to targets containing dissimilar colours or borders. (05 Mar 2000) |
|---|---|
| sibling rivalry | Jealous competition among children, especially for the attention, affection, and esteem of their parents; by extension, a factor in both normal and abnormal competitiveness throughout life. (05 Mar 2000) |