Webster's Dictionary, 1913

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Intumescent adjective [ Latin intumescens , present participle] Swelling up; expanding.

Intumulated adjective [ Latin intumulatus . See In- not, and Tumulate .] Unburied. [ Obsolete]

Intune transitive verb To intone. Confer Entune .

Inturbidate transitive verb [ imperfect & past participle Inturbidated ; present participle & verbal noun Inturbidating .] [ Prefix in- in + turbid .] To render turbid; to darken; to confuse. [ R.]

The confusion of ideas and conceptions under the same term painfully inturbidates his theology.

Inturgescence noun [ Latin inturgescens , present participle of inturgescere to swell up. See 1st In- , and Turgescent .] A swelling; the act of swelling, or state of being swelled. [ Obsolete] Sir T. Browne.

Intuse noun [ Latin intundere to bruise; prefix in- in + tundere , tusum , to beat, bruise.] A bruise; a contusion. [ Obsolete] Spenser.

Intussuscepted adjective [ See Intussusception .] Received into some other thing or part, as a sword into a sheath; invaginated.

Intussusception noun [ Latin intus within + susception . Confer Introsusception .]

1. The reception of one part within another.

2. (Medicine) The abnormal reception or slipping of a part of a tube, by inversion and descent, within a contiguous part of it; specifically, the reception or slipping of the upper part of the small intestine into the lower; introsusception; invagination. Dunglison.

3. (Botany) The interposition of new particles of formative material among those already existing, as in a cell wall, or in a starch grain.

4. (Physiol.) The act of taking foreign matter, as food, into a living body; the process of nutrition, by which dead matter is absorbed by the living organism, and ultimately converted into the organized substance of its various tissues and organs.

Dead bodies increase by apposition; living bodies by intussusception .

Intwine transitive verb [ Confer Entwine .] To twine or twist into, or together; to wreathe; as, a wreath of flowers intwined . [ Written also entwine .]

Intwine intransitive verb To be or to become intwined.

Intwinement noun The act of intwining, or the state of being intwined.

Intwist transitive verb [ Confer Entwist .] To twist into or together; to interweave. [ Written also entwist .]

Inuendo noun See Innuendo .

Inulin noun [ From New Latin Inula Helenium, the elecampane: confer French inuline .] (Chemistry) A substance of very wide occurrence. It is found dissolved in the sap of the roots and rhizomes of many composite and other plants, as Inula , Helianthus , Campanula , etc., and is extracted by solution as a tasteless, white, semicrystalline substance, resembling starch, with which it is isomeric. It is intermediate in nature between starch and sugar. Called also dahlin , helenin , alantin , etc.

Inuloid noun [ Inul in + - oid .] (Chemistry) A substance resembling inulin, found in the unripe bulbs of the dahlia.

Inumbrate transitive verb [ Latin inumbratus , past participle of inumbrare to shade.] To shade; to darken. [ Obsolete]

Inuncted adjective [ See Inunction .] Anointed. [ Obsolete] Cockeram.

Inunction noun [ Latin inunctio , from inungere , inunctum , to anoint. See 1st In- , and Unction .] The act of anointing, or the state of being anointed; unction; specifically (Medicine) , the rubbing of ointments into the pores of the skin, by which medicinal agents contained in them, such as mercury, iodide of potash, etc., are absorbed.

Inunctuosity noun The want of unctuosity; freedom from greasiness or oiliness; as, the inunctuosity of porcelain clay. Kirwan.

Inundant adjective [ Latin inundans , present participle of inundare .] Overflowing. [ R.] Shenstone.

Inundate transitive verb [ imperfect & past participle Inundated ; present participle & verbal noun Inundating .] [ Latin inundatus , past participle of inundare to inundate; prefix in- in + undare to rise in waves, to overflow, from unda a wave. See Undulate .]

1. To cover with a flood; to overflow; to deluge; to flood; as, the river inundated the town.

2. To fill with an overflowing abundance or superfluity; as, the country was inundated with bills of credit.

Syn. -- To overflow; deluge; flood; overwhelm; submerge; drown.

Inundation noun [ Latin inundatio : confer French inondation .]

1. The act of inundating, or the state of being inundated; an overflow; a flood; a rising and spreading of water over grounds.

With inundation wide the deluge reigns,
Drowns the deep valleys, and o'erspreads the plains.

2. An overspreading of any kind; overflowing or superfluous abundance; a flood; a great influx; as, an inundation of tourists.

To stop the inundation of her tears.

Inunderstanding adjective Void of understanding. [ Obsolete] Bp. Pearson.

Inurbane adjective [ Latin inurbanus . See In- not, and Urbane .] Uncivil; unpolished; rude. M. Arnold. -- In`ur*bane"ly , adverb -- In`ur*bane"ness , noun

Inurbanity noun [ Confer French inurbanité .] Want of urbanity or courtesy; unpolished manners or deportment; inurbaneness; rudeness. Bp. Hall.

Inure transitive verb [ imperfect & past participle Inured ; present participle & verbal noun Inuring .] [ From prefix in- in + ure use, work. See Ure use, practice, Opera , and confer Manure .] To apply in use; to train; to discipline; to use or accustom till use gives little or no pain or inconvenience; to harden; to habituate; to practice habitually. "To inure our prompt obedience." Milton.

He . . . did inure them to speak little.
Sir T. North.

Inured and exercised in learning.
Robynson (More's Utopia).

The poor, inured to drudgery and distress.

Inure intransitive verb To pass into use; to take or have effect; to be applied; to serve to the use or benefit of; as, a gift of lands inures to the heirs. [ Written also enure .]

Inurement noun Use; practice; discipline; habit; custom.

Inurn transitive verb [ imperfect & past participle Inurned ; present participle & verbal noun Inurning .] To put in an urn, as the ashes of the dead; hence, to bury; to intomb.

The sepulcher
Wherein we saw thee quietly inurned .

Inusitate adjective [ Latin inusitatus unusual. See Use .] Unusual. [ R.] Bramhall.

Inusitation noun Want of use; disuse. [ R.] Paley.

Inust adjective [ Latin inurere , inustum , to burn in; prefix in- in + urere to burn.] Burnt in. [ Obsolete]

Inustion noun The act of burning or branding. [ Obsolete] T. Adams.

Inutile adjective [ Latin inutilis : confer French inutile . See In- not, Utile .] Useless; unprofitable. [ Obsolete] Bacon.

Inutility noun [ Latin inutilitas : confer French inutilité .] Uselessness; the quality of being unprofitable; unprofitableness; as, the inutility of vain speculations and visionary projects.

Inutterable adjective Unutterable; inexpressible. Milton.

Invade transitive verb [ imperfect & past participle Invaded ; present participle & verbal noun Invading .] [ Latin invadere , invasum ; prefix in- in + vadere to go, akin to English wade : confer Old French invader , French envahir . See Wade .]

1. To go into or upon; to pass within the confines of; to enter; -- used of forcible or rude ingress. [ Obsolete]

Which becomes a body, and doth then invade
The state of life, out of the grisly shade.

2. To enter with hostile intentions; to enter with a view to conquest or plunder; to make an irruption into; to attack; as, the Romans invaded Great Britain.

Such an enemy
Is risen to invade us.

3. To attack; to infringe; to encroach on; to violate; as, the king invaded the rights of the people.

4. To grow or spread over; to affect injuriously and progressively; as, gangrene invades healthy tissue.

Syn. -- To attack; assail; encroach upon. See Attack .

Invade intransitive verb To make an invasion. Brougham.

Invader noun One who invades; an assailant; an encroacher; an intruder.

Invaginate transitive verb To insert as in a sheath; to produce intussusception in.

Invaginate, Invaginated adjective (Biol.) (a) Sheathed. (b) Having one portion of a hollow organ drawn back within another portion.

Invagination noun [ Latin prefix in- + vagina sheath.]

1. (Biol.) The condition of an invaginated organ or part.

2. (Biol.) One of the methods by which the various germinal layers of the ovum are differentiated.

» In embolic invagination , one half of the blastosphere is pushed in towards the other half, producing an embryonic form known as a gastrula . -- In epibolic invagination , a phenomenon in the development of some invertebrate ova, the epiblast appears to grow over or around the hypoblast.

Invalescence noun [ Latin invalescens , present participle of invalescere to become strong. See 1st In- , and Convalesce .] Strength; health. [ Obsolete]

Invaletudinary adjective Wanting health; valetudinary. [ R.]

Invalid adjective [ Prefix in- not + valid : confer French invalide , Latin invalidus infirm, weak. Confer Invalid infirm.]

1. Of no force, weight, or cogency; not valid; weak.

2. (Law) Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement.

Invalid noun [ French invalide , noun & adjective , Latin invalidus , adjective See Invalid null.] A person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health.

Invalid adjective [ See Invalid , noun ] Not well; feeble; infirm; sickly; as, he had an invalid daughter.

Invalid transitive verb
1. To make or render invalid or infirm. " Invalided , bent, and almost blind." Dickens.

2. To classify or enroll as an invalid.

Peace coming, he was invalided on half pay.

Invalidate transitive verb [ imperfect & past participle Invalidated ; present participle & verbal noun Invalidating .] [ From Invalid null.] To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument.

Invalidation noun The act of inavlidating, or the state of being invalidated.

So many invalidations of their right.