dominant

Adjective

• most frequent or common
  • prevailing winds
    

• (of genes) producing the same phenotype whether its allele is identical or dissimilar

• exercising influence or control
  • television plays a dominant role in molding public opinion
    
  • the dominant partner in the marriage
    

Noun

• an allele that produces the same phenotype whether its paired allele is identical or different

• (music) the fifth note of the diatonic scale

Related words

• Synonyms: 
  prevailing , prevalent , predominant , rife , dominant allele
• Antonyms: 
  recessive , subordinate , low-level