1. By means of an inscription

See also: inscriptive

• sperm cell
• sperm count
• sperm oil
• sperm whale
• sperm-filled
• spermaceti
• spermary
• spermatheca
• spermatic
• spermatic cord
• spermatid
• spermatocele
• spermatocide
• spermatocyte
• spermatogenesis
• spermatogonium
• spermatophore
• Spermatophyta
• spermatophyte
• spermatozoan
• spermatozoid
• spermatozoon
• spermicidal
• spermicide
• spermologist