11-letter words that end in ium
- hesperidium — the fruit of a citrus plant, as an orange.
- honourarium — Nonstandard spelling of honorarium.
- hormogonium — a portion of filament in blue-green algae that becomes detached and reproduces by cell division.
- hydroxonium — (chemistry) The cation obtained by reacting a proton with water - H3O+; hydronium.
- hyphopodium — (in a fungus) a specialized hyphal branch, composed of one or two usually lobed cells, serving for attachment and for the absorption of food.
- hyponychium — (anatomy) The thickened epithelium beneath a nail or claw.
- hypothecium — the layer of hyphal tissue directly beneath the hymenium of an apothecium.
- insectarium — a place in which a collection of living insects is kept, as in a zoo.
- intermedium — (in tetrapods) a carpal in the center of the wrist joint, or a tarsal in the center of the ankle joint.
- ipratropium — an anticholinergic bronchodilator that is used esp in the treatment of certain forms of asthma
- itinerarium — a prayer in the breviary, used by a priest about to begin a journey.
- jus gentium — the rules and principles of law derived from the customs and legislation of Rome, as opposed to those derived from the customs of all nations (jus gentium) or from fundamental ideas of right and wrong implicit in the human mind (jus naturale)
- latifundium — a great estate.
- latrocinium — highway robbery
- leprosarium — a hospital for the treatment of lepers.
- livermorium — a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Lv; atomic number: 116.
- lubritorium — a place, as in a service station, for the lubrication of motor vehicles
- maggotorium — a place where maggots are bred for use by fishers
- magisterium — the authority and power of the church to teach religious truth.
- mare nubium — (Sea of Clouds) a dark plain in the third quadrant of the face of the moon: about 95,000 sq. mi. (245,000 sq. km).
- mass medium — any of the means of communication, as television or newspapers, that reach very large numbers of people.
- megatherium — An extinct giant ground sloth of the Pliocene and Pleistocene epochs in America, reaching a height of 16 feet (5 m) when standing erect.
- mendelevium — a transuranic element. Symbol: Md, Mv; atomic number: 101.
- mesocardium — the double layer of splanchnic mesoderm supporting the embryonic heart.
- mesothelium — epithelium of mesodermal origin, which lines the body cavities.
- mesothorium — one of two radioactive decay products of thorium, an isotope of radium or actinium.
- metalithium — A heavy isotope of the simplest alkali metal, (symbol Li) with an atomic number of 3 and containing 8 neutrons. Metalithium is an artificial isotope produced by bombarding Lithium 7 with neutrons. It is radioactive, with a half-life of 0.84 seconds.
- minifundium — A smallholding, in Latin America, that is too small to support a family.
- ministerium — an organization of local ministers or religious leaders who work with other community leaders on social or educational programs.
- monochasium — a form of cymose inflorescence in which the main axis produces only a single branch.
- muscatorium — a flabellum or fan, esp the ceremonial fan carried before the pope
- nemathecium — a wartlike protuberance on the thallus of certain red algae, containing tetraspores, antheridia, or cystocarps.
- neuropodium — (zoology) The ventral lobe or branch of a parapodium.
- nototherium — an extinct Pleistocene rhinoceros-sized marsupial of the genus Nototherium, related to the wombats
- ophidiarium — an enclosure for snakes, adapted to their normal living conditions
- orthohelium — (physics) Form of the helium atom in which the spins of the two electrons are parallel.
- ostensorium — ostensory.
- pandemonium — wild uproar or unrestrained disorder; tumult or chaos.
- paramaecium — a microscopic unicellular ciliate protozoa
- parascenium — either of two wings flanking and extending forward from the skene of an ancient Greek theater.
- parodontium — periodontium.
- pelargonium — any plant of the genus Pelargonium, the cultivated species of which are usually called geranium. Compare geranium (def 2).
- penicillium — any fungus of the genus Penicillium, certain species of which are used in cheesemaking and as the source of penicillin.
- pericardium — the membranous sac enclosing the heart.
- pericranium — the outer periosteum of the cranium.
- peridesmium — the membrane of cellular tissue surrounding a ligament
- perineurium — the sheath of connective tissue that encloses a bundle of nerve fibers.
- peristylium — a peristyle.
- perithecium — the fruiting body of ascomycetous fungi, typically a minute, more or less completely closed, globose or flask-shaped body enclosing the asci.
- perithelium — the connective tissue surrounding certain small vessels, as capillaries.