"recessive" in the noun sense
1. recessive allele, recessive
an allele that produces its characteristic phenotype only when its paired allele is identical
"recessive" in the adjective sense
1. recessionary, recessive
of or pertaining to a recession
2. recessive
of genes) producing its characteristic phenotype only when its allele is identical
Source: WordNet® (An amazing lexical database of English)
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