11-letter words containing a, i, r, l, o
- intracostal — (anatomy) Within a rib.
- intraocular — located or occurring within or administered through the eye.
- intraschool — Within a single school.
- invalidator — One who, or that which, makes invalid.
- inventorial — a complete listing of merchandise or stock on hand, work in progress, raw materials, finished goods on hand, etc., made each year by a business concern.
- invigilator — to keep watch.
- involucrate — having an involucre.
- involuntary — not voluntary; independent of one's will; not by one's own choice: an involuntary listener; involuntary servitude.
- ioshkar-ola — autonomous republic in the Russian Federation in Europe. 8994 sq. mi. (23,294 sq. km). Capital: Ioshkar-Ola.
- irrationals — Plural form of irrational.
- irremovable — not removable.
- irremovably — So as not to be removable.
- irrevocable — not to be revoked or recalled; unable to be repealed or annulled; unalterable: an irrevocable decree.
- irrevocably — not to be revoked or recalled; unable to be repealed or annulled; unalterable: an irrevocable decree.
- irrevokable — Alternative spelling of irrevocable.
- isallobaric — relating to isobars
- isallotherm — a line on a weather map or chart connecting points having equal temperature variations within a given period of time.
- isle royale — an island in Lake Superior: a part of Michigan; a national park. 208 sq. mi. (540 sq. km).
- isoabnormal — isabnormal.
- isometrical — Dated form of isometric.
- isopropanol — isopropyl alcohol.
- isospectral — (mathematics) Having the same spectrum.
- ivory black — a fine black pigment made by calcining ivory.
- jargon file — (jargon, publication, humour) The on-line hacker Jargon File maintained by Eric S. Raymond. A large collection of definitions of computing terms, including much wit, wisdom, and history. See also Yellow Book, Jargon.
- journalists — Plural form of journalist.
- journalized — Simple past tense and past participle of journalize.
- journalizer — One who records events in a journal.
- journalling — journal
- kaiser roll — a rounded, unsweetened roll, formed by folding the corners of a square of dough toward the center, often sprinkled with poppy seeds before baking.
- keratolysis — the loosening or shedding of the horny layer of the epidermis.
- keratolytic — the loosening or shedding of the horny layer of the epidermis.
- kilimanjaro — a volcanic mountain in N Tanzania: highest peak in Africa. 19,321 feet (5889 meters).
- killer boat — a boat used for hunting whales and towing them to a factory ship.
- kilocalorie — one thousand small calories. Abbreviation: kcal. Also called Calorie, kilogram calorie, large calorie. Compare calorie (def 1a).
- kilometrage — The total distance, in kilometres, travelled.
- kiloparsecs — Plural form of kiloparsec.
- l-radiation — one of a series of lines (L-series) in the x-ray spectrum of an atom corresponding to radiation (L-radiation) caused by the transition of an electron to the L-shell.
- la louviere — a city in S Belgium, S of Brussels.
- labor pains — childbirth: contractions
- labor union — an organization of wage earners or salaried employees for mutual aid and protection and for dealing collectively with employers; trade union.
- laboriously — requiring much work, exertion, or perseverance: a laborious undertaking.
- laborsaving — designed or intended to reduce or replace human labor: The dishwasher is a laborsaving device.
- labradorite — a feldspar mineral of the plagioclase group, often characterized by a brilliant change of colors, with blue and green most common.
- lacerations — Plural form of laceration.
- lacrimation — the secretion of tears, especially in abnormal abundance.
- lacrimators — Plural form of lacrimator.
- lacrimatory — of, relating to, or causing the shedding of tears.
- lactiferous — producing or secreting milk: lactiferous glands.
- lactoferrin — a glycoprotein present in milk, especially human milk, and supplying iron to suckling infants.
- lady orchid — a tall graceful orchid, Orchis purpurea, with faintly scented purple-brown and green flowers with a pinkish or white lip