1. Derived from what is primary or original by two intermediate steps
   "a thirdhand report"

1. By doubly indirect means
   "I got the news thirdhand"

See also: secondary

• dimethyl ketone
• dimethylglyoxime
• dimetrodon
• diminish
• diminishable
• diminished
• diminished arch
• diminishing
• diminuendo
• diminution
• diminutive
• diminutiveness
• dimit
• dimity
• dimly
• dimmed
• dimmer
• dimmer switch
• dimness
• Dimocarpus
• Dimocarpus longan
• dimorphic
• dimorphism
• Dimorphotheca
• dimorphous