An unintended electric discharge or arc over or around an insulator.
The near simultaneous ignition of all combustible material in an enclosed area.
flashproof
flashproof
adj
Resistant to sparks and fire.
flashtester
flaughtbred
flaughter
flaughter
noun
A flat spade used in peat cutting.
flavanthrene
flavanthrene
noun
Synonym of flavanthrone
flavanthrone
flavanthrone
noun
A certain yellow dye, Vat Yellow 1.
fleahopper
fleahopper
noun
Any of several very small insects in the family Miridae that are garden or agricultural pests.
fleahoppers
fleahoppers
noun
plural of fleahopper
flexographic
flexographic
adj
Of or pertaining to flexography
flexographically
flexographically
adv
By means of flexography.
flexography
flexography
noun
A method of printing using a rubber or polymer rotating printing plate, most commonly used for packaging (labels, tape etc.).
fliegerabwehrkanone
flinthearted
flinthearted
adj
Alternative form of flint-hearted
floorhead
floorhead
noun
(nautical) Any of the upper extremities of the floor of a vessel.
florigraphy
florigraphy
noun
Alternative form of floriography
flourishable
flourishable
adj
Able or fit to be flourished.
flowchart
flowchart
noun
Alternative spelling of flow chart
flowcharted
flowcharting
flowcharting
noun
(computing) the design and construction of flowcharts
flowcharts
flowcharts
noun
plural of flowchart
fluidrachm
fluidrachm
noun
Alternative form of fluidram
fluoranthene
fluoranthene
noun
(organic chemistry) A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combustion
fluorographic
fluorographic
adj
Relating to fluorography.
fluorography
fluorography
noun
photofluorography
visualisation of radiolabelled material
fluorophosphate
fluorophosphate
noun
(inorganic chemistry) The anion PO₃F²⁻ formed by replacing one hydroxyl of a phosphate anion with a fluorine atom; any salt containing such an anion
(organic chemistry) The functional group >PO₃F formed by replacing one hydroxyl of a phosphate group with a fluorine atom; any compound containing such a group
flushboard
flushboard
noun
Alternative form of flashboard
flusherman
fluviograph
fluviograph
noun
(dated) An instrument for measuring and automatically recording the rise and fall of a river.
fluxgraph
flycatcher
flycatcher
noun
Any of many kinds of birds, of the families Muscicapidae (in Europe and Asia) and Tyrannidae (in the Americas), that catch insects in flight.
flycatchers
flycatchers
noun
plural of flycatcher
foliobranch
foliobranchiate
foolhardier
foolhardier
adj
comparative form of foolhardy: more foolhardy
foolhardiest
foolhardiest
adj
superlative form of foolhardy: most foolhardy
foolhardihood
foolhardihood
noun
(obsolete) foolhardiness
foolhardily
foolhardily
adv
In a foolhardy manner
foolhardiness
foolhardiness
noun
The quality of being foolhardy.
foolhardinesses
foolhardinesses
noun
plural of foolhardiness
foolhardiship
foolhardy
foolhardy
adj
Marked by unthinking recklessness with disregard for danger; boldly rash; hotheaded.
noun
A person who is foolhardy.
forecastlehead
forefatherly
forehalf
forehall
forehandedly
forehandedly
adv
Ahead of time, in advance.
Prudently, with thrift and foresight.
forehandsel
forhaile
forhale
forhale
verb
(transitive, obsolete) To overhaul; overtake.
formaldehyd
formaldehyde
formaldehyde
noun
(organic chemistry) The simplest aldehyde, HCHO, a colourless gas that has many industrial applications; it dissolves in water to give formol (10%) and formalin.
formaldehydes
formaldehydes
noun
plural of formaldehyde
formaldehydesulphoxylate
formaldehydesulphoxylate
noun
A salt or ester of formaldehydesulphoxylic acid.
formaldehydesulphoxylic
formalith
forthcall
fothergilla
frailish
frailish
adj
Somewhat frail.
franchisal
franchisal
adj
Pertaining to franchises.
francophil
francophile
francophile
noun
Alternative letter-case form of Francophile
francophilia
francophilia
noun
Alternative letter-case form of Francophilia
francophilism
frankheartedly
freakishly
freakishly
adv
In a freakish manner.
freehandedly
freehandedly
adv
In a freehanded manner.
freeheartedly
freeheartedly
adv
In a freehearted manner; lightly and without constraint or worry.
frightable
frightenable
frightenable
adj
Capable of being frightened.
frontlash
frontlash
noun
A swell of support for a proposal that counters any backlash.
frontosphenoidal
fullhearted
fullhearted
adj
Alternative form of full-hearted
fulshear
furaldehyde
furaldehyde
noun
(organic chemistry) furfural
furbishable
furbishable
adj
Capable of being furbished.
furfuralcohol
furfuraldehyde
furfuraldehyde
Noun
furfural
furnishable
furnishable
adj
Capable of being fitted with furniture.
Capable of being supplied or provided.
gonfaloniership
gonfaloniership
noun
The role or status of gonfalonier.
grandfatherless
grandfatherless
adj
Without a grandfather.
grandfatherly
grandfatherly
adj
Having the characteristics of a grandfather.
In the manner of a grandfather.
hafler
hailproof
hailproof
adj
Resistant to hail (form of frozen precipitation).
halfer
halfer
noun
(decision theory) With regard to the Sleeping Beauty problem: one who argues that the probability of heads is 1/2.
(obsolete) A gelded male fallow deer.
(obsolete) One who possesses or gives half only; one who shares.
halfhearted
halfhearted
adj
(obsolete) Lacking in heart or spirit; ungenerous; unkind.
Lacking full energy, effort, commitment, or resolve.
halfheartedly
halfheartedly
adv
Without enthusiasm or interest.
halfheartedness
halfheartedness
noun
The characteristic of being halfhearted.
halfheartednesses
halfhourly
halford
halfpennyworth
halfpennyworth
noun
(Britain) As much as could be bought for a halfpenny (pre- or post-decimalisation).
(Britain, informal) A negligible amount.
(Britain, informal) One's opinion or thoughts; one's two cents.
halftrack
halftrack
noun
Alternative form of half-track
halfword
halfword
noun
(computing) An area of storage one half the size of the word in a particular system; usually two bytes
halfwords
halfwords
noun
plural of halfword
hallieford
halterproof
handflower
handflower
noun
(sometimes in the phrase ‘handflower tree’) A Mexican hand tree (Chiranthodendron pentadactylon).
A wallflower (Erysimum cheiri, syns. Erysimum × cheiri, Cheiranthus cheiri).
An item of jewellery consisting of a bracelet linked to a ring by chains, lace or other elements which cross the back of the hand.
handkerchiefful
handkerchiefful
noun
As much as a handkerchief will hold.
harangueful
harangueful
adj
Full of haranguing.
harborful
harborful
noun
Enough to fill a harbor.
harmful
harmful
adj
of a kind likely to be damaging; injurious
harmfully
harmfully
adv
In a harmful manner.
harmfulness
harmfulness
noun
The characteristic of being harmful.
harmfulnesses
harmfulnesses
noun
plural of harmfulness
harpersfield
hartfield
hartsfield
hazardful
hazardful
adj
Full of hazard; dangerous; risky.
healthcraft
heartfelt
heartfelt
adj
Believed or felt deeply and sincerely.
heartful
heartful
adj
Sincere and compassionate.
noun
An amount of emotion considered to be present in the heart.
heartfully
heartfully
adv
In a heartful manner.
heartfulness
heartfulness
noun
The state or quality of being heartful.
heartleaf
heartleaf
noun
Any of various plants with heart-shaped leaves, such as the Houttuynia cordata.
Wild ginger, Asarum caudatum
heredofamilial
heterofertilization
heterofertilization
noun
(biology) A form of double fertilization, typically in maize, that results in phenotypically different endosperm and embryo
hexafluoride
hexafluoride
noun
(chemistry) any fluoride containing six fluorine atoms in each molecule
hierofalco
hindarfjall
honorifical
honorifical
adj
Or or pertaining to honorifics.
honorific.
honorifically
honorifically
adv
In an honorific manner.
horrifically
horrifically
adv
In a horrific manner.
horseplayful
horseplayful
adj
Engaging in horseplay.
hydrodesulfurization
hydrodesulfurization
noun
(chemistry) a process for lowering the sulfur content of petroleum and similar products by catalytic hydrogenation, sulfur compounds being converted to hydrogen sulfide
hydrofluate
hydrofluate
noun
(chemistry, archaic) A supposed compound of hydrofluoric acid and a base; a fluoride.
hydrofluosilicate
hydrofluosilicate
noun
(chemistry) A salt of hydrofluosilic acid.
hydroformylation
hydroformylation
noun
(chemistry) The reaction of an olefin with carbon monoxide and hydrogen to form an aldehyde.
hydrofranklinite
hydrosulfate
hydrosulfate
noun
(chemistry) Any sulfate of an organic base
hyperfastidiously
hyperfederalist
hyperfocal
hyperfocal
adj
(photography) Describing the distance on which a camera must be focused in order to achieve the maximum depth of field
hyperfunctional
hyperfunctional
adj
Having, or characterised by, increased function
hyperfunctionally
hyperinflation
hyperinflation
noun
(economics) A very high rate of inflation.
infernalship
infrabranchial
infrabranchial
adj
(zoology) Below the gills; applied to the ventral portion of the pallial chamber in the lamellibranchs.
infracanthal
infracephalic
infraperipherial
infratracheal
infratrochlear
infratrochlear
adj
(anatomy) Below a trochlea; applied especially to one of the subdivisions of the trigeminal nerve.
interflashing
ischiofemoral
ischiofemoral
adj
(anatomy) Relating to, or connecting the ischium and the femur
ischiofibular
ischiofibular
adj
(anatomy) Relating to the ischium and fibula.
labyrinthiform
labyrinthiform
adj
Having the form of a labyrinth; intricate.
lachrymaeform
lachrymiform
lachrymiform
adj
Shaped like a teardrop
lanternfish
lanternfish
noun
any of small, deep sea fish of the large family Myctophidae, named after their conspicuous use of bioluminescence.
lanternfishes
lanternfishes
noun
plural of lanternfish
laughterful
laughterful
adj
Full of laughter; indicative of, characterised by, or expressing laughter or mirth.