fleaker
A container used for liquids in a laboratory, combining the flat base and wide profile of a beaker with the narrowed neck of a flask.

fleakers
plural of fleaker

fleam
A sharp instrument used to open a vein, to lance gums, or the like.

fleams
plural of fleam

fleuron
An ornament or knob in the shape of a flower
The small decorative flower at the centre of each side of a Corinthian abacus; a flos.
A decorative typographic element, used to separate passages or simply for decoration. Often doubled, e.g. 🙚 🙘 or 🙘🙚, or combined with other fleurons into a short line.

fleurons
plural of fleuron

flexicurve
A strip of flexible material that can be used for drawing curves, measuring posture, etc.

flexicurves
plural of flexicurve

flexizyme
An artificial flexible tRNA aminoacylation ribozyme used to incorporate unnatural amino acids into proteins

flexizymes
plural of flexizyme

flextension
A type of transducer that uses flexible, elastic shells to transmit and amplify displacements.
A variable-length extension to a tool or device.
The extension of a deadline that allows a flexible final date (originally used to refer to Brexit, but subsequently extended to other contexts).
A position in which the lower neck is flexed and upper neck extended.

flextensions
plural of flextension

flibanserin
A drug that may be used to treat decreased libido in women

flint
A hard, fine-grained quartz that fractures conchoidally and generates sparks when struck against a material such as steel, because tiny chips of the steel are heated to incandescence and burn in air.
A piece of flint, such as a gunflint, used to produce a spark by striking it with a firestriker.
A small cylinder of some other material of the same function in a cigarette lighter, etc.
A variety of maize/corn with a hard outer hull.
Anything figuratively hard.

flintknapping
The creation of tools by knapping flint.

flintlime
A mixture of lime (calcium) and crushed flint used to make calcium silicate bricks.

flintlimes
plural of flintlime

flints
plural of flint

flintworking
The manufacture of simple tools from flints

flipchart
Alternative spelling of flip chart.

flipcharts
plural of flipchart

floatover
A marine construction in which an upper structure is prebuilt and then floated into position over a lower part, often used for offshore oil rigs.

floatovers
plural of floatover

floatstick
A device used to measure the fuel level on modern aircraft.

floatsticks
plural of floatstick

flocculator
A machine that induces flocculation.

flocculators
plural of flocculator

flock
A number of birds together in a group, such as those gathered together for the purpose of migration.
A large number of animals associated together in a group; commonly used of sheep, but (dated) also used for goats, farmed animals, and a wide variety of animals.
Those served by a particular pastor or shepherd.
A large number of people.
A religious congregation.

flocke
Obsolete form of flock.

flockes
plural of flocke

flocks
plural of flock

flong
A mould, especially one made from papier-mâché, used to create a stereotype.

flongs
plural of flong

floodgate
An adjustable gate or valve used to control the flow of water through a sluice.
Anything that controls or limits an outpouring of people, emotion, etc.
A stream that passes through a floodgate; a torrent.

floodgates
plural of floodgate

floodlamp
Synonym of floodlight.

floodlamps
plural of floodlamp

floodlight
A projector of a bright beam of light for use in theatres and studios; a flood
Powerful artificial illumination with a broad beam, especially in a series of units on pylons used to illuminate a sports ground.

floodlights
plural of floodlight

floodometer
An instrument for measuring the height of floodwater.

floodometers
plural of floodometer

floorcloth
A cloth, normally of flannel, used for cleaning floors.
Material used in place of carpeting for covering floors, such as linoleum or oilcloth.

floorcloths
plural of floorcloth

floorgrip
A device used to steady firing and counter the effects of recoil, resulting in far more accurate fire when shooting in full auto mode. It can be incorporated in some rifles as part of the Rail Integration System.

floorgrips
plural of floorgrip

flopdock
Synonym of lady's foxglove (“Digitalis purpurea”).

flosh
Alternative form of floss (“fibres of corncob, bean plants, etc.”).

floshes
plural of flosh

floss
A thread used to clean the gaps between the teeth.
Raw silk fibres.
The fibres covering a corncob etc.; the loose downy or silky material inside the husks of certain plants, such as beans.
Any thread-like material having parallel strands that are not spun or wound around each other.
Spun sugar or cotton candy, especially in the phrase "candy floss".
A body feather of an ostrich.
A dance move in which the dancer repeatedly swings their arms, with clenched fists, from the back of their body to the front, on each side.

flosses
plural of floss

flourmonger
Alternative form of flour-monger.

flourmongers
plural of flourmonger

flowcharter
A software program that generates flow charts.

flowcharters
plural of flowcharter

flubendazole
An anthelmintic used to protect against internal parasites and worms in dogs and cats.

fluidifier
A substance used to fluidify a grout mixture.

fluidifiers
plural of fluidifier

fluidiser
Alternative form of fluidizer.

fluidisers
plural of fluidiser

fluidizer
A device that fluidizes.

fluidizers
plural of fluidizer

fluochrome
Misspelling of fluorochrome.

fluorescein
Any of a class of yellow xanthene dyes which are visible when highly diluted; used forensically to detect traces of blood, and in analytical chemistry as an indicator in silver nitrate titrations

fluoresceine
Alternative spelling of fluorescein.

fluoresceines
plural of fluoresceine

fluoresceins
plural of fluorescein

fluorescer
A fluorescent substance used for whitening.

fluorescers
plural of fluorescer

fluorimeter
Alternative form of fluorometer.

fluorimeters
plural of fluorimeter

fluormeter
Alternative form of fluorometer.

fluormeters
plural of fluormeter

fluorochrome
Any of various fluorescent dyes used to stain biological material before microscopic examination

fluorochromes
plural of fluorochrome

fluorocytometer
A cytometer used in fluorocytometry

fluorocytometers
plural of fluorocytometer

fluorodetector
A fluorescence detector

fluorodetectors
plural of fluorodetector

fluoroestradiol
A radioactive diagnostic agent, an analog of estrogen used to detect estrogen-receptor-positive breast cancer lesions.

fluoroformol
An aqueous solution of fluoroform gas, formerly used to treat tuberculosis, whooping cough, etc.

fluoroimmunosensor
An immunosensor that employs fluorescence

fluoroimmunosensors
plural of fluoroimmunosensor

fluorometer
An instrument used to detect and measure fluorescence.

fluorometers
plural of fluorometer

fluoromicroscope
A microscope used in fluoromicroscopy

fluoromicroscopes
plural of fluoromicroscope

fluorophenylalanine
Any of several isomeric fluoro derivatives of phenylalanine used to inhibit bacteriophage replication

fluorophenylalanines
plural of fluorophenylalanine

fluoroproline
Any of several isomeric fluoro derivatives of proline, but especially 4-fluoroproline that is used to replace natural proline in peptides and proteins to alter their stability, conformation and folding

fluoroprolines
plural of fluoroproline

fluoropyrimidine
Any of many fluorine substitution products of pyrimidine or its derivatives; especially such antimetabolites used to treat cancer

fluoropyrimidines
plural of fluoropyrimidine

fluoroscope
A device used to measure the fluorescence of a solution.
A device used to view continuous live X-ray images on a fluorescent screen.

fluoroscoped
simple past and past participle of fluoroscope

fluoroscopes
plural of fluoroscope

fluoroscoping
present participle and gerund of fluoroscope

fluorosensor
A device that senses / detects fluorescence