1. Restricted to members of a single sex
   - single-sex 
2. Of or relating to homosexual men or women
   - gay, homosexual

Encyclopedia: Same-sex

• peril
• Perilla
• Perilla frutescens crispa
• perilous
• perilously
• perilousness
• perilune
• perilymph
• perimeter
• perimetry
• perimysium
• perinasal
• perinatal
• perinatologist
• perinatology
• perineal
• perineal artery
• perineotomy
• perineum
• perineurium
• period
• period of play
• period of time
• period piece
• periodic