ionicity
The condition of being ionic.
The extent to which something is ionic.

ionics
The study of ionic conductors.

ionisation
Alternative spelling of ionization.

ionisations
plural of ionisation

ionizabilities
plural of ionizability

ionizability
The condition of being ionizable.
A measure of the extent to which something is ionizable.

ionization
Any process that leads to the dissociation of a neutral atom or molecule into charged particles ions; the state of being ionized.

ionizations
plural of ionization

ionocalorics
The study of ionocaloric effects.

ionocovalence
The state of being ionocovalent.

ionogram
A display of the data produced by an ionosonde; a graph of the virtual height of the ionosphere plotted against frequency.

ionomerization
The formation of an ionomer.

ionomics
The study of ionomes.

ionopause
The boundary layer of the ionosphere, where it meets the mesosphere or exosphere.

ionopauses
plural of ionopause

ionophilicities
plural of ionophilicity

ionophilicity
The condition of being ionophilic

ionophoresis
The movement of charged particles in an electric field

ionosphere
The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.
The similar region of the atmosphere of another planet.

ionospheres
plural of ionosphere

ionotropy
A form of tautomerism involving the movement or redistribution of charges
The regulation of neurotransmitters or cell receptors by ion channels

iontotherapy
The therapeutic use of iontophoresis

iotacism
Pronunciation of another vowel or diphthong as [i], or a vowel shift resulting in such pronunciation, especially in Greek.
A misspelling resulting from such pronunciation.

iotacisms
plural of iotacism

iotacismus
iotacism

iotisation
Alternative spelling of iotization.

iotization
The act or process of iotizing.

ipi
The long-tailed pangolin (Manis tetradactyla)

ipsation
Solitary masturbation.

ipsativity
The quality of being ipsative.

ipsatization
The process of ipsatizing.

ipsedixitism
An unfounded, false and dogmatic assertion; an ipse dixit.
The practice of making such assertions.

ipsedixitisms
plural of ipsedixitism

ipseities
plural of ipseity

ipseity
selfhood; individual identity

ipsilaterality
The state of being ipsilateral, i.e. being on the same side.

ipsissimosity
Self-referentiality.

iqama
The second call to prayer, made immediately before Muslims pray.

iqamah
Alternative spelling of iqama.

iqamas
plural of iqama

iqamat
Alternative form of iqama.

iqamats
plural of iqamat

iqta
The Islamic practice of farming out tax revenues yielded by land granted temporarily to army officials in place of a regular wage.

iqtadar
The holder of an iqta.

iqtadars
plural of iqtadar.

iqtas
plural of iqta.

iracundity
anger; irritability

irascibilities
plural of irascibility

irascibility
The quality of being irascible; irritability of temper.

irascibleness
The state of being irascible; irascibility.

irasers
plural of iraser

irateness
The state of being irate.

iration
creation

irefulness
The state of being ireful; anger; fury.

irenicism
Behaviour or belief that tends to resolve disputes between denominations or religions; irenical theology; conciliation.

irenicisms
plural of irenicism

irenics
Synonym of irenicism (“behaviour or belief that tends to resolve disputes between denominations or religions”).

irenology
The study of peace.

irezumi
traditional Japanese tattooing

iridescence
The condition or state of being iridescent; exhibition of colors like those of the rainbow; a prismatic play of color.
Any shimmer of glittering and changeable colors.

iridescences
plural of iridescence

iridescencies
plural of iridescency

iridescency
Alternative form of iridescence.

iridioscope
A kind of ophthalmoscope, invented in the 19th century, allowing a person to examine their own eye.

iridioscopes
plural of iridioscope

iridisation
Alternative spelling of iridization.

iridization
the application of iridium to a surface

iridocyclitides
plural of iridocyclitis

iridocyclitis
A type of anterior uveitis.

iridodiagnostics
The practice of iridodiagnosis.

irisation
A colorful optical phenomenon seen in iridescent clouds and on the borders of lenticular clouds resembling those seen in soap bubbles and oil on a water surface.

irisations
plural of irisation

iriscope
A philosophical toy for exhibiting the prismatic tints by means of thin films.
A device used in iridology to photograph the eye and send the image to a computer.

iriscopes
plural of iriscope

irisology
The study or cultivation of irises.

irksomeness
The state of being irksome

irksomenesses
plural of irksomeness

irmologia
plural of irmologion

irmologion
A liturgical book containing irmoi for the various canons chanted during the morning service.

irmos
The initial troparion of an ode of a canon.

ironfistedness
Alternative form of iron-fistedness

ironhandedness
Alternative form of iron-handedness.

ironheartedness
Alternative form of iron-heartedness.

ironicalness
irony; the quality of being ironical.

ironism
A state of doubt regarding one's own "vocabulary" (set of communicative beliefs) that cannot be removed by making arguments in that vocabulary.

ironmongering
The trade of an ironmonger.

ironness
Quality of being iron.

ironsand
A type of black sand with a high iron content, found on many west coast beaches in New Zealand, as well as elsewhere.

ironsands
plural of ironsand

ironsmithy
The trade of an ironsmith.

ironym
An ironic pseudonym.

ironyms
plural of ironym

irps
plural of irp

irradiance
The act of irradiating; emission of rays of light.
That which irradiates or is irradiated; lustre; splendour; brilliancy.
The radiant power received by unit area of surface.

irradiances
plural of irradiance

irradiancies
plural of irradiancy

irradiancy
Synonym of irradiance.

irradiation
An act of irradiating, or state of being irradiated.
An act of irradiating, or state of being irradiated.
illumination; irradiance; brilliance.
mental light or illumination.
The apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, especially when a little out of focus.

irradiations
plural of irradiation

irrationability
irrationality; lack of reason

irrationalism
A philosophical movement formed as a cultural reaction against positivism in the early 20th century.

irrationalisms
plural of irrationalism

irrationalities
plural of irrationality

irrationality
The quality or state of being irrational.
The quality or state of being irrational.
The quality or state of being irrational.
Something that is irrational; the result of an illogical or absurd thought or action.

irrationalness
The quality of being irrational.

irrealism
The belief that phenomenalism and physicalism are alternative "world-versions", both useful in some circumstances, but neither capable of fully capturing the other.
A style that features an estrangement from our generally accepted sense of reality.

irrealisms
plural of irrealism

irrealities
plural of irreality

irreality
Unreality.

irreceptivity
The quality of being irreceptive.

irreclaimability
Synonym of irreclaimableness

irreclaimableness
The quality of being irreclaimable.

irrecognition
A failure to recognize; absence of recognition.

irrecollection
Obsolete form of unrecollection.

irreconcilability
The quality of being irreconcilable; irreconcilableness.

irreconcilableness
The quality of being irreconcilable

irreconcilement
the state or quality of being unreconciled or irreconcilable; disagreement

irreconcilements
plural of irreconcilement

irreconciliableness
The quality of being irreconciliable.

irreconciliation
Lack of reconciliation; disagreement