13-Letter Words Start with 'pen'

There are 15 13-letter words that start with 'pen'.

penalizations	pendulousness
penetrability	penetratingly
penetrometers	penicillamine
penicillinase	penitentially
pennywhistles	pensivenesses
pentapeptides	pentaploidies
pentobarbital	penultimately
penuriousness

Note: These 15 13-letter words that start with 'pen' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with pent, penn, pens, peni, penu, pena, pene, pend, penc, peno, peng, penl, penm, penh, penk, penp.

4-letter words start with 'pen' (3)
5-letter words start with 'pen' (10)
6-letter words start with 'pen' (21)
7-letter words start with 'pen' (38)
8-letter words start with 'pen' (48)
9-letter words start with 'pen' (57)
10-letter words start with 'pen' (49)
11-letter words start with 'pen' (37)
12-letter words start with 'pen' (15)
13-letter words start with 'pen' (15)
14-letter words start with 'pen' (5)
15-letter words start with 'pen' (4)