9-letter words containing p, l, o, y
- olympiads — Plural form of olympiad.
- operantly — In an operant manner.
- operosely — In an operose manner.
- ophiology — the branch of herpetology dealing with snakes.
- optically — of, relating to, or applying optics or the principles of optics.
- optimally — optimum (def 3).
- opulently — In an opulent manner.
- otoplasty — plastic surgery of the external ear.
- outplayed — Simple past tense and past participle of outplay.
- overapply — To apply to excess.
- oxyphilic — acidophilic.
- paedology — the study of the character, growth, and development of children
- paleology — the study of antiquities.
- palillogy — the repetition of a phrase or word
- palpatory — to examine by touch, especially for the purpose of diagnosing disease or illness.
- pantology — a systematic view of all human knowledge.
- parleyvoo — to speak French
- pathology — the science or the study of the origin, nature, and course of diseases.
- patrology — Also called patristics. the branch of theology dealing with the teachings of the church fathers.
- payloader — a heavy, wheeled vehicle with a large, movable blade or scoop at the front.
- payrolled — a list of employees to be paid, with the amount due to each.
- payroller — a wage earner, especially a government employee.
- pelecypod — any mollusk of the class Pelecypoda (Lamellibranchiata), characterized by a bivalve shell enclosing the headless body and lamellate gills, comprising the oysters, clams, mussels, and scallops.
- pellitory — any of various urticaceous plants of the S and W European genus Parietaria, esp P. diffusa (pellitory-of-the-wall or wall pellitory), that grow in crevices and have long narrow leaves and small pink flowers
- pentalogy — a combination of five closely related things, esp (in medicine) closely connected symptoms or (in art) related works of art
- permalloy — any of various alloys containing iron and nickel (45–80 per cent) and sometimes smaller amounts of chromium and molybdenum
- perorally — through or via the mouth
- pestology — the analysis and research of pests and how to get rid of them
- petrology — study of rocks
- phenology — the science dealing with the influence of climate on the recurrence of such annual phenomena of animal and plant life as budding and bird migrations.
- philogyny — love of or liking for women.
- philology — the study of literary texts and of written records, the establishment of their authenticity and their original form, and the determination of their meaning.
- phonology — the study of the distribution and patterning of speech sounds in a language and of the tacit rules governing pronunciation.
- photolyse — to cause to undergo or to undergo photolysis
- photolyze — to break down molecules with light.
- photoplay — a motion-picture scenario; screenplay.
- phycology — the branch of botany dealing with algae.
- phylakopi — an archaeological site on the Greek island of Melos, in the Cyclades group: excavations have revealed the remains of three successive ancient cities erected on a primitive Cycladic settlement.
- phyllopod — any crustacean of the order Phyllopoda, having leaflike swimming appendages.
- phylogeny — the development or evolution of a particular group of organisms.
- phytolith — a microscopic silica body that forms in a living plant and becomes fossilized.
- phytology — botany.
- pilcomayo — a river in S central South America, flowing SE from S Bolivia along the boundary between Paraguay and Argentina to the Paraguay River at Asunción. 1000 miles (1610 km) long.
- pistology — the branch of theology dealing with faith.
- pivotally — of, relating to, or serving as a pivot.
- placatory — serving, tending, or intended to placate: a placatory reply.
- placitory — of or relating to pleas made to support a claim or a defence
- play down — a dramatic composition or piece; drama.
- play upon — a dramatic composition or piece; drama.
- playdough — children's modelling clay