dichlorodifluoromethanes (24 letters)
demethylchlortetracycline
draindreaddream
Overenthusiastically or Overapprehensiveness Both are 20 letters long :D
How about "density"?
The word is rodents.
demethylchlortetracycline
Dichlorodifluoromethane is the longest word that begins with the letter D.
draindreaddream
determined
Overenthusiastically or Overapprehensiveness Both are 20 letters long :D
dauntless
How about "density"?
deal
delivered
deduce
Deduce
Winter! ;d