1. Not having a duct
   "ductless glands"

See also: duct

• Sinequan
• sinew
• sinewy
• sinfonia
• sinful
• sinfully
• sinfulness
• sing
• sing-kwa
• singable
• singalong
• Singan
• Singapore
• Singapore dollar
• Singapore Island
• Singaporean
• singe
• singer
• Singhalese
• singing
• singing voice
• single
• single bed
• single combat
• single cream