18 letter words
PHEOCHROMOCYTOMATA​37
POLYCHROMATOPHILIA​35
PSEUDOPARENCHYMATA​33
16 letter words
PHEOCHROMOCYTOMA​35
PSEUDOPARENCHYMA​31
15 letter words (4 words)
PHENYLKETONURIA​27
PLEUROPNEUMONIA​21
PARALLELEPIPEDA​22
PARALLELOPIPEDA​22
14 letter words (5 words)
PHANTASMAGORIA​22
PSEUDEPIGRAPHA​25
PHENYLTHIOUREA​25
PROPERISPOMENA​22
PSEUDAESTHESIA​20
13 letter words (16 words)
PARAPHERNALIA​20
PHARMACOPOEIA​24
PARAINFLUENZA​27
PANLEUCOPENIA​19
PANLEUKOPENIA​21
PANOPHTHALMIA​25
PARALEIPOMENA​19
PHYSHARMONICA​28
PIPIWHARAUROA​23
PLASMODESMATA​20
POLYCYTHAEMIA​28
PROSENCEPHALA​22
PROSENCHYMATA​25
PROSOPAGNOSIA​18
PROSTHODONTIA​19
PSYCHASTHENIA​26
12 letter words (27 words)
PREECLAMPSIA​20
PHARMACOPEIA​23
POLYCYTHEMIA​27
PANCYTOPENIA​21
PARASITAEMIA​16
PALINGENESIA​15
PANAESTHESIA​17
PARAESTHESIA​17
PARALIPOMENA​18
PARAMENSTRUA​16
PARASYNTHETA​20
PARENCEPHALA​21
PARENCHYMATA​24
PEDICELLARIA​17
PERICHONDRIA​20
PHENGOPHOBIA​25
PHONASTHENIA​20
PHOSPHATURIA​22
PIROPLASMATA​18
PLASMOSOMATA​18
11 letter words (55 words)
PSYCHEDELIA​22
PROTEINURIA​13
PERESTROIKA​17
PASTEURELLA​13
PSYCHODRAMA​24
PAEDOPHILIA​19
PASSACAGLIA​16
PHOTOPHOBIA​23
PARESTHESIA​16
PROLEGOMENA​16
PLASMALEMMA​19
PACHYDERMIA​24
PACHYSANDRA​22
PALUDAMENTA​16
PANESTHESIA​16
PANTOPHOBIA​20
PAPILLOMATA​17
PARAGENESIA​14
PARAGRAPHIA​19
PARANTHELIA​16
10 letter words (90 words)
PROPAGANDA​16
PARRAMATTA​14
POINSETTIA​12
PEDOPHILIA​18
PARAPLEGIA​15
PARENCHYMA​22
PIGMENTOSA​15
PASSIFLORA​15
PRESBYOPIA​19
POTENTILLA​12
PERSONALIA​12
PORTABELLA​14
PARMIGIANA​15
PULSATILLA​12
PETRONELLA​12
PHYLLOXERA​25
POHUTUKAWA​22
PYRACANTHA​20
PANSPERMIA​16
PARAPHILIA​17
9 letter words (92 words)
PENINSULA​11
PHENOMENA​16
PNEUMONIA​13
PRIMAVERA​16
PONDEROSA​12
PRINCIPIA​15
PAPILLOMA​15
POLYHEDRA​18
PORPHYRIA​19
POLLYANNA​14
PRANAYAMA​16
POINCIANA​13
PYROMANIA​16
PUTONGHUA​15
PRIMORDIA​14
PESHMERGA​17
PAULOWNIA​14
PORTULACA​13
PARTITURA​11
PEPEROMIA​15
8 letter words (65 words)
PANORAMA​12
PARANOIA​10
PIZZERIA​28
PLETHORA​13
PLACENTA​12
PASHMINA​15
PROFORMA​15
PROTOZOA​19
PENUMBRA​14
PLUMERIA​12
PARABOLA​12
PANCETTA​12
PALESTRA​10
PARHELIA​13
PRUNELLA​10
PERFECTA​15
PHACELIA​15
PAROUSIA​10
PROGERIA​11
PELLAGRA​11
7 letter words (91 words)
PANDORA​10
PERSONA​9
PIRANHA​12
PALMYRA​14
PEREIRA​9
PAPRIKA​15
PANACEA​11
PETUNIA​9
PISCINA​11
PERGOLA​10
PURPURA​11
PATELLA​9
POLENTA​9
PEMBINA​13
POUSADA​10
PALABRA​11
PAVLOVA​15
PRIMULA​11
PARTITA​9
PODESTA​10
6 letter words (63 words)
PLASMA​10
PANAMA​10
PHARMA​13
PIAZZA​26
PHOBIA​13
PAJAMA​17
PAPAYA​13
PAGODA​10
POSADA​9
PATINA​8
PROTEA​8
PESETA​8
PLANTA​8
PINATA​8
PATACA​10
PAELLA​8
PREMIA​10
PAYOLA​11
PYJAMA​20
PLEURA​8
5 letter words (56 words)
PIZZA​25
PLAZA​16
PASTA​7
PLAYA​10
PANDA​8
PRIMA​9
PARMA​9
POLKA​11
PORTA​7
PARKA​11
PRANA​7
PASHA​10
PAISA​7
PENNA​7
POOJA​14
PARRA​7
POPPA​11
PAMPA​11
PADMA​10
PACHA​12
4 letter words (23 words)
PARA​6
PAPA​8
PUMA​8
PLEA​6
PIMA​8
PITA​6
PINA​6
PULA​6
PICA​8
PUJA​13
PUPA​8
PIPA​8
PUNA​6
PAUA​6
PELA​6
PIKA​10
PILA​6
PACA​8
PUKA​10
PROA​6
3 letter words (4 words)
PEA​5
POA​5
PIA​5
PYA​8
2 letter words
PA​4