9-letter words containing o, p, y
- perorally — through or via the mouth
- personify — to attribute human nature or character to (an inanimate object or an abstraction), as in speech or writing.
- pestology — the analysis and research of pests and how to get rid of them
- petrology — study of rocks
- phagocyte — any cell, as a macrophage, that ingests and destroys foreign particles, bacteria, and cell debris.
- pharyngo- — pharynx
- phenocopy — the observed result of an environmentally induced, nongenetic alteration of a phenotype to a form that resembles the expression of a known genetic mutation.
- 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.
- phenotype — the observable constitution of an organism.
- phenytoin — a barbiturate-related substance, C 1 5 H 1 2 N 2 O 2 , used as an anticonvulsant in the treatment of grand mal epilepsy and in focal seizures.
- 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.
- phonatory — rapid, periodic opening and closing of the glottis through separation and apposition of the vocal cords that, accompanied by breath under lung pressure, constitutes a source of vocal sound.
- phonology — the study of the distribution and patterning of speech sounds in a language and of the tacit rules governing pronunciation.
- phonotype — a piece of type bearing a phonetic character or symbol.
- phonotypy — phonography (def 2).
- phony war — (in wartime) a period of apparent calm and inactivity, esp the period at the beginning of World War II
- photocopy — a photographic reproduction of a document, print, or the like.
- photolyse — to cause to undergo or to undergo photolysis
- photolyze — to break down molecules with light.
- photoplay — a motion-picture scenario; screenplay.
- phototype — a plate with a relief printing surface produced by photography.
- phototypy — the process or art of producing phototypes
- phycocyan — a type of blue pigment or protein which is found in some algae
- 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.
- phytocide — a substance or preparation for killing plants.
- phytolith — a microscopic silica body that forms in a living plant and becomes fossilized.
- phytology — botany.
- phytosaur — any armored, semiaquatic reptile of the extinct order Phytosauria, of the Mesozoic Era, resembling the crocodile but unrelated, having the nostrils high on the snout and with well-developed hind limbs suggestive of bipedal ancestors.
- phytotomy — the study of the internal structure or anatomy of plants
- phytotron — a building in which plants can be grown on a large scale, under controlled conditions
- 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.
- pin money — any small sum set aside for nonessential minor expenditures.
- pinon jay — pinyon jay.
- piscatory — of or relating to fishermen or fishing: a piscatory treaty.
- 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
- playgoing — the activity of attending the theatre
- playgroup — a group of small children, especially preschoolers, organized for play or play activities and supervised by adult volunteers.
- playhouse — a theater.
- pleiomery — the state of a flower having more than the normal number of parts
- pleiotaxy — an increase in the normal number of parts.