APLACENTAL
APLANAT
APLANATIC
APLANATICALLY
APLANATISM
APLANATISMS
APLANATS
APLANETIC
APLANOGAMETE
APLANOGAMETES
APLANOSPORE
APLANOSPORES
APLASIA
APLASIAS
APLASTIC
APLENTY
APLITE
APLITES
APLITIC
APLOMB
APLOMBS
APLUSTRE
APLUSTRES

23 words start with APL.