1. Plural of leucism; a genetic condition in animals characterized by reduced pigmentation, resulting in pale or white coloration while retaining normal eye color.
Usage: biology; zoology

Examples

• Leucisms in reptiles can make them appear ghostly white while their eyes remain pigmented.
• The researcher studied leucisms in wild bird populations to understand genetic variation.
• Unlike albinism, leucisms preserve the animal's eye pigmentation.
• Several leucisms have been documented in captive snake breeding programs.
• The distinction between leucisms and albinism is important in wildlife biology.