13 Letter Words
psychoanalyze
35
phenothiazine
30
phylloquinone
30
phenmetrazine
29
phenomenalize
29
proverbialize
29
provincialize
29
prejudicative
28
phosphokinase
27
proparoxytone
27
particularize
26
pharyngoscope
26
phencyclidine
26
phenylephrine
26
phosphorylase
26
phosphorylate
26
pronominalize
26
psychoanalyse
26
pedestrianize
25
phospholipase
25
platitudinize
25
polypropylene
25
pyrimethamine
25
photocopiable
24
photosynthate
24