- Showing a degree of correspondence or similarity such that it suggests a common origin.
#biology corresponding to a similar structure in another life form with a common evolutionary origin e.g. flippers and hands
#chemistry belonging to a series of aliphatic organic compounds that differ only by the addition of a CH<sub>2</sub> group
#genetics having the same morphology as another chromosome
- homologous blood donation
German: homolog (1-4)