12-letter words containing s, i, a, m
- inconsumable — not consumable; incapable of being consumed.
- increasement — (rare) An increase; growth.
- incumbrances — Plural form of incumbrance.
- infamousness — The state or quality of being infamous; infamy.
- inflamedness — The state or quality of being inflamed.
- inflammasome — (biochemistry) A multi-protein complex that is responsible for inflammatory rheumatic diseases via activation of caspases.
- inflationism — the policy or practice of inflation through expansion of currency or bank deposits.
- infomercials — Plural form of infomercial.
- informations — (legal) Plural form of information.
- inharmonious — not harmonious; discordant; unmelodious.
- inhumanities — Plural form of inhumanity.
- innominables — trousers
- insectariums — Plural form of insectarium.
- inseminating — Present participle of inseminate.
- insemination — to inject semen into (the female reproductive tract); impregnate.
- installments — Plural form of installment.
- instrumental — serving or acting as an instrument or means; useful; helpful.
- intermarries — Third-person singular simple present indicative form of intermarry.
- intimateness — Quality of being intimate.
- intimidators — Plural form of intimidator.
- islamophobia — Alternative capitalization of Islamophobia.
- ismail pasha — 1830–95, viceroy and khedive of Egypt 1863–79.
- isochromatic — Optics. having the same color or tint.
- isodiametric — having equal diameters or axes.
- isoenzymatic — isoenzymic
- isolationism — the policy or doctrine of isolating one's country from the affairs of other nations by declining to enter into alliances, foreign economic commitments, international agreements, etc., seeking to devote the entire efforts of one's country to its own advancement and remain at peace by avoiding foreign entanglements and responsibilities.
- isothermally — occurring at constant temperature.
- james dickey — James, 1923–97, U.S. poet and novelist.
- jameson raid — an expedition into the Transvaal in 1895 led by Sir Leander Starr Jameson (1853–1917) in an unsuccessful attempt to topple its Boer regime
- jasmine rice — an aromatic, flavorful long-grain rice of Asia, especially Thailand.
- jumpstarting — Present participle of jumpstart.
- jumpstations — Plural form of jumpstation.
- justicialism — the political doctrine of Juan Domingo Perón, formerly President of Argentina
- kashmir goat — one of a long-haired breed of goat raised in Tibet and the higher elevations of China, the Indian subcontinent, Afghanistan, and Turkey for its meat, milk, and cashmere wool.
- katamorphism — metamorphism at or near the earth's surface: breaks down complex minerals into simpler ones.
- keratotomies — Plural form of keratotomy.
- king-of-arms — a title of certain of the principal heralds of England and certain other kingdoms empowered by their sovereigns to grant armorial bearings.
- lachrymosity — suggestive of or tending to cause tears; mournful.
- lacrimal sac — the dilated upper portion of the nasolacrimal duct that receives tears from the lacrimal ducts.
- lactalbumins — Plural form of lactalbumin.
- ladies' room — a public lavatory for women.
- lamb's tails — burro's tail.
- lamentations — the act of lamenting or expressing grief.
- laminotomies — Plural form of laminotomy.
- lammergeiers — Plural form of lammergeier.
- lamplighters — Plural form of lamplighter.
- languishment — the act or state of languishing.
- laparotomies — Plural form of laparotomy.
- lemnian seal — the earth of the Greek island of Lemnos, which is famous for its medicinal properties
- leprosariums — Plural form of leprosarium.