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Definition of -gen in English:
-gen
1Chemistry
Denoting a substance that produces something.‘oxygen’- ‘allergen’
2Botany
Denoting a substance or plant that is produced.- ‘cultigen’
Origin
Via French -gène from Greek genēs ‘-born, of a specified kind’, from gen- (root of gignomai ‘be born, become’, genos ‘a kind’).
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