congener
noun
con·ge·ner ˈkän-jə-nər 
kən-ˈjē-
kən-ˈjē- 1
: a member of the same taxonomic genus as another plant or animal
2
: a person, organism, or thing resembling another in nature or action
the New England private schools and their congeners west of the Alleghenies
Oliver La Farge
Oliver La Farge3
: a chemical substance related to another
congeneric
ˌkän-jə-ˈner-ik
adjective congenerous
kən-ˈjē-nə-rəs
adjective -ˈje-nə-
(ˌ)kän- 
Example Sentences
Recent Examples on the Web Opt for clear liquor Clear liquors typically have fewer chemicals called congeners than the darker ones, Dr. Koob says. Samantha Lauriello, Health.com, 26 Aug. 2019 Stick to clear booze; darker spirits like whisky have more congeners in them. Liz Krieger, Harper's BAZAAR, 23 Nov. 2016 This is to separate the alcohol and congeners (at this point, called low wines) from the mash. Francine Maroukian, Popular Mechanics, 23 Mar. 2016
Samantha Lauriello, Health.com, 26 Aug. 2019 Stick to clear booze; darker spirits like whisky have more congeners in them. Liz Krieger, Harper's BAZAAR, 23 Nov. 2016 This is to separate the alcohol and congeners (at this point, called low wines) from the mash. Francine Maroukian, Popular Mechanics, 23 Mar. 2016 Word History
Etymology
Latin, of the same kind, from com- + gener-, genus kind — more at kin
First Known Use
circa 1736, in the meaning defined at sense 1
Medical Definition
congener
noun
con·ge·ner ˈkän-jə-nər kən-ˈjē-
kən-ˈjē- variants also cogener
ˈkō-ˌjē-nər kō-ˈ
kō-ˈ 1
: a member of the same taxonomic genus as another plant or animal
2
: a chemical substance related to another
tetracycline and its congeners