Meanings
nounhalf-sider (plural half-siders)
plural half-siders
- A bilateral gynandromorph, an animal that is one sex on the left and another sex on the right.
- An animal that is one color on the left and another on the right.
If the lost choromosome had been the one carrying the blue gene, then a visual half-sider would not have resulted, although the bird would still be a genetic half-sider, one side pure Light Green and the other side Light Green/blue.
1961, Thomas Geoffrey Taylor, Cyril Warner, Genetics for Budgerigar Breeders, page 104
Cite this entry
APA
half-sider. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/half-sider
MLA
“half-sider.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/half-sider. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “half-sider,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/half-sider.
Source: half-sider on Wiktionary, CC BY-SA 4.0.