IG'NEOUS, adjective [Latin igneus, from ignis, fire.]

1. Consisting of fire; as igneous particles emitted from burning wood.

2. Containing fire; having the nature of fire.

3. Resembling fire; as an igneous appearance.

IGNES'CENT, adjective [Latin ignescens, ignesco, from ignis, fire.]

Emitting sparks of fire when struck with steel; scintillating; as ignescent stones.

IGNES'CENT, noun A stone or mineral that gives out sparks when struck with steel or iron.

Many other stones, besides this class of ignescents, produce a real scintillation when struck against steel.

IGNIF'LUOUS, adjective [Latin ignifluus.] Flowing with fire.

IG'NIFY, verb transitive [Latin ignis and facio.] To form into fire.

IGNIP'OTENT, adjective [Latin ignis, fire, and potens, powerful.]

Presiding over fire. Vulcan is called the power ignipotent

IGNIS FATUUS, noun [Latin] A meteor or light that appears in the night, over marshy grounds, supposed to be occasioned by phosphoric matter extricated from putrefying animal or vegetable substances, or by some inflammable gas; vulgarly called - Will with the wisp, and Jack with a lantern.

IGNI'TE, verb transitive [Latin ignis, fire.] To kindle, or set on fire.

1. More generally, to communicate fire to, or to render luminous or red by heat; as, to ignite charcoal or iron. Anthracite is ignited with more difficulty than bituminous coal.

IGNI'TE, verb intransitive To take fire; to become red with heat.

IGNI'TED, participle passive Set on fire.

1. Rendered red or luminous by heat or fire.

IGNI'TIBLE, adjective Capable of being ignited.

IGNI'TING, participle present tense Setting on fire; becoming red with heat.

1. Communicating fire to; heating to redness.

IGNI'TION, noun The act of kindling, or setting on fire.

1. The act or operation of communicating fire or heat, till the substance becomes red or luminous.

2. The state of being kindled; more generally, the state of being heated to redness or luminousness.

3. Calcination.

IGNIV'OMOUS, adjective [Latin ignivomus; ignis, fire, and vomo, to vomit.]

Vomiting fire; as an ignivomous mountain, a volcano.

IGNOBIL'ITY, noun Ignobleness. [Not in use.]

IGNO'BLE, adjective [Latin ignobilis; in and nobilis. See Noble.]

1. Of low birth or family; not noble; not illustrious.

2. Mean; worthless; as an ignoble plant.

3. Base, not honorable; as an ignoble motive.

IGNO'BLENESS, noun Want of dignity; meanness.

IGNO'BLY, adverb Of low family or birth; as ignobly born.

1. Meanly; dishonorably; reproachfully; disgracefully; basely.

The troops ignobly fly.

IGNOMIN'IOUS, adjective [Latin ignominiosus. See Ignominy.]

1. Incurring disgrace; cowardly; of mean character.

Then with pale fear surprised,

Fled ignominious

2. Very shameful; reproachful; dishonorable; infamous. To be hanged for a crime is ignominious Whipping, cropping and branding are ignominious punishments.

3. Despicable; worthy of contempt; as an ignominious projector.

IGNOMIN'IOUSLY, adverb Meanly; disgracefully; shamefully.

IG'NOMINY, noun [Latin ignominia; in and nomen, against name or reputation.] Public disgrace; shame; reproach; dishonor; infamy.

Their generals have been received with honor after their defeat; yours with ignominy after conquest.

Vice begins in mistake, and ends in ignominy

IGNORA'MUS, noun [Latin we are ignorant; from ignoro.]

1. The indorsement which a grand jury make on a bill presented to them for inquiry, when there is not evidence to support the charges, on which all proceedings are stopped, and the accused person is discharged.

2. An ignorant person; a vain pretender to knowledge.

IG'NORANCE, noun [Latin ignorantia; ignoro, not to know; ignarus, ignorant; in and gnarus, knowing.]

1. Want, absence or destitution of knowledge; the negative state of the mind which has not been instructed in arts, literature or science, or has not been informed of facts. ignorance may be general, or it may be limited to particular subjects. ignorance of the law does not excuse a man for violating it. ignorance of facts if often venial.

Ignorance is preferable to error.

2. Ignorances, in the plural, is used sometimes for omissions or mistakes; but the use is uncommon and not to be encouraged.

IG'NORANT, adjective [Latin ignorans.] Destitute of knowledge; uninstructed or uninformed; untaught; unenlightened. A man may be ignorant of the law, or of any art or science. He may be ignorant of his own rights, or of the rights of others.

1. Unknown; undiscovered; a poetical use; as ignorant concealment.

2. Unacquainted with.

Ignorant of guilt, I fear not shame.

3. Unskillfully made or done. [Not legitimate.]

Poor ignorant baubles.

IG'NORANT, noun A person untaught or uninformed; one unlettered or unskilled.

Did I for this take pains to teach

Our zealous ignorants to preach?

IG'NORANTLY, adverb Without knowledge, instruction or information.

Whom therefore ye ignorantly worship, him declare I unto you. Acts 17:23.

1. Unskillfully; inexpertly. A man may mistake blunders for beauties and ignorantly admire them.

IGNO'RE, verb transitive To be ignorant. [Not in use.]

IGNOS'CIBLE, adjective [Latin ignoscibilis.] Pardonable. [Not used.]

IGNO'TE, adjective [Latin ignotus.] Unknown. [Not used.]

IGU'ANA, noun A species of lizard, of the genus Lacerta.