1. The genetically determined sex characteristics that are not functionally necessary for reproduction (pitch of the voice and body hair and musculature)
   - secondary sexual characteristic, secondary sex character

Derived forms: secondary sex characteristics

Type of: sex character, sex characteristic, sexual characteristic

Encyclopedia: Secondary sex characteristic

• genus Trichecus
• genus Trichoceros
• genus Trichodesmium
• genus Trichoglossus
• genus Tricholoma
• genus Trichomanes
• genus Trichomonas
• genus Trichophaga
• genus Trichophyton
• genus Trichostema
• genus Trichostigma
• genus Trichosurus
• genus Trichys
• genus Tridacna
• genus Trifolium
• genus Triga
• genus Triglochin
• genus Trigonella
• genus Trilisa
• genus Trillium
• genus Trimorphodon
• genus Trinectes
• genus Tringa
• genus Trionyx
• genus Triops