pophole
A small door in the side of a chicken coop, normally connected to the ground via a ramp.

popholes
plural of pophole

popinac
Vachellia farnesiana (syn. Acacia farnesiana), a widely cultivated thorny shrubby acacia of the southern U.S. and tropical America with fragrant ball-shaped yellow flowers.

popinack
Alternative form of popinac.

popinacks
plural of popinack

popinacs
plural of popinac

porefield
An area of pores, in the valve of a diatom, through which mucopolysaccharides extrude to make stalks and pads.

porefields
plural of porefield

porkmeister
A politician involved in "pork barrel" politics, using central funds for regional projects designed to appeal to voters.

porkmeisters
plural of porkmeister

pornification
Conversion to the style or level of pornography.

porotiti
A kind of pump drill used in the Maori culture.

portsider
A left-handed pitcher, boxer, hockey player, etc.; a southpaw.

portsiders
plural of portsider

portsill
A horizontal wooden member that forms the sill of a gunport.

posnit
A cooking pot or saucepan.

posnits
plural of posnit

postdilation
dilation (of a blood vessel) following some other operation

posteriorisation
Alternative form of posteriorization.

posteriorisations
plural of posteriorisation

posteriorization
The acquisition of posterior values, especially the formation of the forebrain, midbrain, hindbrain and spinal cord from the anterior neural plate

posteriorizations
plural of posteriorization

postgiro
A giro (financial instrument) sent through the post.

postgiros
plural of postgiro

postpronotum
The posterior division of a pronotum

potbank
A bottle-shaped oven used in parts of England for firing pottery.

potbanks
plural of potbank

potful
as much as a pot will hold

potfuls
plural of potful

potgun
A pot-shaped cannon; a mortar.
A pop gun.

potguns
plural of potgun

potiche
A vase with a separate cover, the body usually rounded or polygonal in plan with nearly vertical sides, a neck of smaller size, and a rounded shoulder.

potiches
plural of potiche

potlessness
Absence of a pot.

potlid
A lid that covers a pot.

potlids
plural of potlid

potline
An interconnected row of electrolytic reduction pots used in the smelting of aluminium.

potlines
plural of potline

potmaking
The manufacture of pots.

potscape
An artistic arrangement of plants in pots.

potscapes
plural of potscape

potscaping
gardening involving plants in pots and other containers which may be artistically arranged

potsful
plural of potful

potsie
Any of the marbles located within a shallow hole (or "pot") used in certain variants of the game.

potware
Pots collectively.

pouchitis
inflammation of the ileal pouch (an artificial rectum surgically created out of ileal gut tissue in patients who have undergone a colectomy).

pouchoscopies
plural of pouchoscopy

pouchoscopy
An endoscopic examination of the ileoanal pouch

poviat
Alternative spelling of powiat.

poviats
plural of poviat

powiat
The second-level unit of local government and administration in Poland.

powiats
plural of powiat

praefericula
plural of praefericulum

praefericulum
A tall vase with a handle, used in Ancient Roman sacrifices

preamplifier
A voltage amplifier for amplifying a low-level input signal; its output is the input to a higher-level amplifier.

preamplifiers
plural of preamplifier

preburner
A combustion chamber of a bipropellant rocket engine.

preburners
plural of preburner

precalc
precalculus

precalculus
A course, or set of courses, that includes (specifically) trigonometry and algebra at an appropriate level to prepare students to study calculus.

predetonation
When a nuclear bomb fails to produce full yield, due to the chain reaction starting prematurely, before the system is at optimum criticality.

predetonations
plural of predetonation

preemphasis
Amplification applied to certain frequencies of a signal to improve its signal-to-noise ratio.

prefamilies
plural of prefamily

prefamily
A taxonomic rank above the level of family.

prerotation
A swirling motion in fluid entering a pump.

pressback
A wooden chair of the Victorian period, having a pattern pressed into the crest rail and/or splat by means of a steam press.

pressbacks
plural of pressback

preswirl
The deliberate imparting of a swirling motion to the incoming airflow, to reduce drag on the rotor blades.

preswirls
plural of preswirl

prewellordering
A binary relation that is transitive, total, and well-founded.

prewellorderings
plural of prewellordering

pricket
A candle.
A spike for holding a single candle.
A male deer in its second year, whose antlers have not yet branched.

prickets
plural of pricket

prickshaft
A type of arrow.

prickshafts
plural of prickshaft

printmaking
The field of art concerned, roughly, with the transfer of ink or paint from a plate or block or through a screen mesh to paper.

printoff
printout.

printout
Something printed on paper, usually by a printer (machine).

printouts
plural of printout

prioritarianism
The view that the goodness of an outcome is a function of overall well-being across all individuals, with extra weight given to those who are worse off.

proangiogenesis
The promotion of angiogenesis.

probasisternum
The basisternum of the prothorax of some insects

probit
A unit, derived from a standard normal distribution, used in measuring the responses to doses.
The probit function, the inverse of the standard normal cumulative distribution function.

probits
plural of probit

proctosigmoidoscope
The instrument used in proctosigmoidoscopy.

proctosigmoidoscopes
plural of proctosigmoidoscope

profichi
The crop of caprifig collected in the spring

pronota
plural of pronotum

pronotum
The dorsal plate of the prothorax in insects

pronotums
plural of pronotum

proration
In budgeting, the proportional distribution or allocation of parameters, such as noise power and transmission losses, among a number of tandem-connected items, such as equipment, cables, links, or trunks, in order to balance the performance of communications circuits.
In a telephone switching center, the distribution or allocation of equipment or components proportionally among a number of functions, to provide a requisite grade of service.
In the insurance industry, the act of taking money that is currently due from the insurance company and moving it to the patient, knowing that the dollar amount being moved is due from the patient as a deductible, coinsurance, or copayment amount.

prorations
plural of proration

prosiphon
A minute tube found in the protoconch of ammonites, not connected with the true siphon.

prosiphons
plural of prosiphon

prosodification
The imposition of prosodic structure (e.g. syllables, feet, stress, etc.) onto string of segments (i.e. sounds such as consonants and vowels)

prosodifications
plural of prosodification

prothrombinopenia
Synonym of hypoprothrombinemia.

prothyalosome
A spherical envelop of the nucleolus in the nucleus of an ovum.

protodiastole
The initial phase of diastole during which the aortic valve closes

protosporangiid
Any slime mould of the order Protosporangiida

protosporangiids
plural of protosporangiid

protosteliid
Any slime mould of the order Protosteliida

protosteliids
plural of protosteliid

pseudoacromion
A lateral scapular ridge on nodosaurid ankylosaurs

pseudoconopea
plural of pseudoconopeum

pseudoconopeum
A hyaline flap of silica forming a cavity on the external valve face of a marine diatom

pseudodomain
A nonexistent top-level domain that is assigned a meaning in certain specialized contexts.

pseudodomains
plural of pseudodomain

pseudogap
An energy level that has few electronic states associated with it

pseudogaps
plural of pseudogap

pseudohypernatremia
A falsely elevated sodium level in the blood.

pseudoinstruction
A command that resembles, but is not in fact, a machine instruction, such as a special directive or a command that is mapped to a sequence of real instructions.