1. The ordinal number of forty in counting order
   - fortieth

See also: ordinal

• 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
• spermophile
• Spermophilus
• spermous