Definitions
1.nounA plant or animal of the same taxonomic genus as another.
2.nounA person or thing similar in behavior or nature to another.
3.nounAny of a group of structurally-related compounds.
4.nounAny of several alcohols, other than ethanol, that are found in fermented and distilled alcoholic drinks, and are partially responsible for their flavour and character.
5.adjectiveOf or pertaining to congeners (organisms of the same genus)