13-Letter Words Starting with I

""Within a cell; as, the intracellular movements seen in the pigment cells, the salivary cells, and in the protoplasm of some vegetable cells. as, the intracellular movements seen in the pigment cells, the salivary cells, and in the protoplasm of some vegetable cells.""

Occurring or situated within the cerebrum: an intracerebral hemorrhage.

Intradermal

Occurring or situated within the space of a galaxy.

Within a muscle: an intramuscular injection.

""Refusing to moderate a position, especially an extreme position; uncompromising.""

Refusal to budge

Pigheadedness a sign in recent changes

Stubborn refusal to compromise

Intransigent

Intraocular

Existing or occurring within the individual self or mind.

Intrapreneur

Arising or occurring within a species: intraspecific competition.

Intrathecal

Within the thora<?/ or chest.

Within blood vessels or a blood vessel.

Intravenous

Intrepidity

The state or quality of being intricate; intricacy.

Internally; <?/n its nature; essentially; really; truly.

There's a proper how-do-you-do!

English word

The act of going in; entrance.

Infiltration of the genes of one species into the gene pool of another through repeated backcrossing of an interspecific hybrid with one of its parents.

INTROJECTION introject

Intromission

Introspect

Manage to insert topic on reflection

Examination of one's thoughts

Examination of one's inner feelings

Given to study of one's inner self

Given to self-examination

Inward-looking

Introversion

Invasive quality

Intuitionism

Intuitionist

Intuitive

Intumescence

Intussuscept

Invagination

Invalidation

The quality of being invariable; invariableness; constancy; uniformity.

Invective

Inveiglement

Creativity

Inventorial

Invertebrate

The work of inquiring into something thoroughly and systematically.

Testing a vino I fancy for research

Inquiry as it is no vintage brew

Making enquiries

Like journalism that exposes wrongdoing

Concerned with detective work

Like a form of journalism exposing malpractice

Investigator

Pertaining to formal inquiries

Making enquiries

Inviability

Invigilation

Invigoration

The quality or state of being invincible; invincibleness.

The quality or state of being inviolable; inviolableness.

Inviolate

Invitational

In an involuntary manner; not voluntarily; not intentionally or willingly.

Plural or third person singular

""(Life Sciences & Allied Applications / Biochemistry) Biochem a technique for studying neurotransmitters in the brain by the application of experimental solutions to the tissues through fine glass electrodes [from Greek iont-, ion, from ienai to go + -phoresis ]""

Adjective (-ic)

Ipsilateral

""IRRATIONAL Not rational; void of reason or understanding; as, brutes are irrational animals. as, brutes are irrational animals.""

IRRATIONALISE irrational

Absence of logic

Lack of logic

One who is irreligious.

Congressman's uncertainties (wordplay)

Not able to be recovered

Ever irritable after programming what purged data may become (wordplay)

In an irretrievable manner.

Proneness to anger

An isoantibody normally present in the serum of an individual that causes the agglutination of the red blood cells of another individual of the same species.

Isoantibody

Having equal numbers of electrons or the same electronic configuration.

Isolationism

Isolationist

ISOMERIZE ISOMERE an organ corresponding with another

Isometrical

English word

ISOSMOTIC having the same or equal osmotic pressure; isotonic; -- used of solutions. Contrasted with hypertonic and hypotonichypertonic and hypotonic

""ISOSTATIC Subjected to equal pressure from every side; being in hydrostatic equilibrium, as a body submerged in a liquid at rest; pertaining to, or characterized by, isostasy.""

Isotonicity

""ITALICIZE To print in Italic characters; to underline written letters or words with a single line; as, to Italicize a word; Italicizes too much. as, to Italicize a word; Italicizes too much.""