13-Letter Words Start with 'def'

There are 18 13-letter words that start with 'def'.

defeasibility	defectiveness
defenestrated	defenestrates
defenselessly	defensibility
defensiveness	deferentially
defervescence	defibrillated
defibrillates	defibrillator
defibrinating	defibrination
deflagrations	deforestation
deformalizing	deformational

Note: These 18 13-letter words that start with 'def' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with defe, defi, defo, defl, defa, defr, defu, deft, deff, defy.

4-letter words start with 'def' (3)
5-letter words start with 'def' (4)
6-letter words start with 'def' (26)
7-letter words start with 'def' (45)
8-letter words start with 'def' (60)
9-letter words start with 'def' (73)
10-letter words start with 'def' (70)
11-letter words start with 'def' (42)
12-letter words start with 'def' (20)
13-letter words start with 'def' (18)
14-letter words start with 'def' (11)
15-letter words start with 'def' (8)