preabdomen
The enlarged anterior portion of the abdomen of a scorpion or sea scorpion
The anterior segments of the abdomen, distinguished from the posterior segments holding the reproductive apparatus.

preabdomens
plural of preabdomen

preabdomina
plural of preabdomen

prebonsai
A young plant that can be used to create a bonsai.

prebonsais
plural of prebonsai

prechopper
A device for prechopping.

prechoppers
plural of prechopper

precleaner
A device or component that performs preliminary cleaning.

precleaners
plural of precleaner

precoder
An electronic device used in precoding.

precoders
plural of precoder

precomputer
Before the availability of computer technology.

precomputers
Before the availability of computers.

preconcentrator
A device used to preconcentrate

preconcentrators
plural of preconcentrator

precooler
A device that precools things before they are placed into a cooler or fridge.
A device which cools the incoming airstream prior to its introduction into the combustion chamber or compressor.

precoolers
plural of precooler

predistillation
distillation prior to another process
Used to describe a preparatory process carried out before distillation

predivider
Synonym of prescaler.

predividers
plural of predivider

prefiller
A machine or device that fills something in advance.

prefillers
plural of prefiller

preform
An object that has undergone preliminary shaping but is not yet in its final form.
The rough, incomplete and unused basic form of a stone tool.
A word that is no longer in use, but has been reconstructed from current ones.

preforms
plural of preform

pregroove
A premolded spiral groove in an optical disc, used to guide the laser beam when the disc is read or written.

pregrooves
plural of pregroove

prehardener
A solution of chemicals used to harden the gelatin of a photographic emulsion prior to processing.

prehardeners
plural of prehardener.

preheater
An engineering device that preheats a material prior to some other process.

preheaters
plural of preheater

premixer
A machine that premixes.

premixers
plural of premixer

preparser
A software component that performs parsing in advance.

preparsers
plural of preparser

prepender
A software component that prepends data to a computer file.

prependers
plural of prepender

prepress
Before going to press.

prepresses
plural of prepress

presa
A symbol, such as ※ or :S:, used to indicate where a voice is to begin singing in a canon or round.

presas
plural of presa

prescaler
A counting circuit used to reduce a high-frequency electrical signal to a lower frequency by integer division.

prescalers
plural of prescaler

preselector
Any of various radio switching or filtering devices.
A manual gearbox designed so that the manual shift lever preselects the next gear to be used and a separate pedal is used to engage it, without needing to work a manual clutch.

preselectors
plural of preselector

preseparator
A device or component that performs preliminary separation.

preseparators
plural of preseparator

preservatories
plural of preservatory

preservatory
A preservative.
A room or apparatus in which perishable things can be preserved without decay.

preshave
Designed for application before shaving

preshaves
plural of preshave

pressiometer
A device used to measure the stress in soil under pressure

pressiometers
plural of pressiometer

presspack
Any of various types of packaging that are sealed using a mechanical press.
A type of package for semiconductor devices, in which the chips are placed in a housing and then compressed using a mechanical press.

presspacks
plural of presspack

pressurant
A gas used to drive a fluid through a fluid system.

pressurants
plural of pressurant

pressurewasher
Alternative form of pressure washer.

pressurewashers
plural of pressurewasher

pretensioner
A mechanism to retract and tighten a seatbelt, prior to a crash.

pretensioners
plural of pretensioner

prettyprinter
Alternative form of pretty-printer.

prettyprinters
plural of prettyprinter

prevalency
prevalence

priar
Obsolete form of prayer.
Obsolete form of pryer.

priars
plural of priar

prin
Alternative spelling of preen.

principle
A fundamental assumption or guiding belief.
A rule used to choose among solutions to a problem.
Moral rule or aspect.
A rule or law of nature, or the basic idea on how the laws of nature are applied.
A fundamental essence, particularly one producing a given quality.
A fundamental essence, particularly one producing a given quality.
A source, or origin; that from which anything proceeds; fundamental substance or energy; primordial substance; ultimate element, or cause.
An original faculty or endowment.
Misspelling of principal.
A beginning.

principles
plural of principle

printer
One who makes prints.
The operator of a printing press or the owner of a printing business; (metonymic) any printing business.
A device, usually attached to a computer, used to print text or images onto paper; an analogous device capable of producing three-dimensional objects.

printers
plural of printer

priser
A tool for prising something open.
Obsolete form of prizer.

prisers
plural of priser

prismatoolithid
Any fossil egg of the oofamily Prismatoolithidae.

prismatoolithids
plural of prismatoolithid

prisoptometer
A device containing a double prism, used to measure refraction and thus diagnose anomalies in a patient's vision.

prisoptometers
plural of prisoptometer

pritchel
A metal punch or shaping tool with a round shank, designed to fit in a pritchel hole in an anvil.

pritchels
plural of pritchel

privacity
Techniques used to maintain one's privacy.

privies
plural of privy

probang
A tool consisting rod, originally made of whalebone, with a sponge on the end, used for removing obstructions from the oesophagus, etc.

probangs
plural of probang

processor
A person or institution who processes things (foods, photos, applications, etc.).
A device which processes, which changes something (a computer processor, food processor, etc.).
A central processing unit.
A microprocessor.

processors
plural of processor

procimidone
Misspelling of procymidone.

procteurynter
An instrument for dilating the anus.

procteurynters
plural of procteurynter

proctoscope
A tube-like instrument, equipped with a light, used to examine the rectum.

proctoscopes
plural of proctoscope

procymidone
A pesticide often used for killing ferns and nettles.

prodd
A kind of crossbow used to shoot pebbles or pellets

prodds
plural of prodd

profiler
A mechanical device that cuts complex, irregular shapes by tracing a pattern.
A person who creates a profile for something or someone, especially a psychological profile for an unknown criminal.
A device that analyzes something and builds up a profile.
A software program that measures the performance of different portions of another program in order to locate bottlenecks.

profilers
plural of profiler

profilograph
An instrument for automatically recording the profile of the ground it traverses.

profilographs
plural of profilograph

profilometer
A device designed to measure the profile, and hence the roughness, of a surface.

profilometers
plural of profilometer

proggie
A program, especially (historical) an externally produced hacking tool used to attack other users on early America Online services.

proggies
plural of proggy
plural of proggie

proggy
Characteristic of progressive rock music.

progie
Misspelling of proggie.

projectoscope
A kind of kinetoscope, a device for exhibiting motion pictures.

projectoscopes
plural of projectoscope

proker
A poker.

prokers
plural of proker

prolonge
A rope with a hook and a toggle, sometimes used to drag a gun carriage or to tie it to the limber, and for various other purposes.

prolonges
plural of prolonge

promargins
plural of promargin

prongs
plural of prong