15-letter words containing r, a, c, o, n
- interscholastic — between schools, or representative of different schools, especially secondary schools: interscholastic athletics.
- intramyocardial — Into or within the myocardium.
- introspectional — Of or relating to introspection.
- inverted commas — Inverted commas are punctuation marks that are used in writing to show where speech or a quotation begins and ends. They are usually written or printed as ' ' or " ". Inverted commas are also sometimes used around the titles of books, plays, or songs, or around a word or phrase that is being discussed.
- invitation card — a card given to someone to invite them to something
- ionospherically — by the ionosphere
- ironstone china — a tough durable earthenware
- irrationalistic — Of or relating to irrationalism.
- irreconcileable — Alternative spelling of irreconcilable.
- irrevocableness — Quality of being irrevocable.
- irritable colon — any combination of common disturbances of the bowel, as diarrhea or constipation, occurring with abdominal pain, sometimes accompanied by psychological stress. Abbreviation: IBS.
- jack-o'-lantern — a hollowed pumpkin with openings cut to represent human eyes, nose, and mouth and in which a candle or other light may be placed, traditionally made for display at Halloween.
- jacob ben asher — c1269–c1340, Hebrew commentator on the Bible and codifier of Jewish law.
- john barleycorn — a personification of barley as used in malt liquor, of malt liquor itself, or of any intoxicating liquor.
- judeo-christian — of or relating to the religious writings, beliefs, values, or traditions held in common by Judaism and Christianity.
- karaoke machine — a device that plays a prerecorded backing tape, to which people take it in turns to sing
- kelmscott manor — a Tudor house near Lechlade in Oxfordshire: home (1871–96) of William Morris
- keratoacanthoma — (pathology) A common low-grade malignancy of the skin.
- knight bachelor — bachelor (def 3).
- kronecker delta — a function of two variables, i and j, which equals 1 when the variables have the same value, i = j, and equals 0 when the variables have different values, i ≠ j.
- lactovegetarian — Also called lactarian. a vegetarian whose diet includes dairy products.
- lake-of-lucerne — a canton in central Switzerland. 576 sq. mi. (1490 sq. km).
- lambda-c baryon — a positively charged baryon with a mean lifetime of approximately 2.1 X 10 -13 seconds.
- lancaster sound — an arm of Baffin Bay, Nunavut Territory, Canada, leading W to the Parry Channel. 200 miles (320 km) long and 40 miles (64 km) wide.
- laryngectomized — having had one's larynx surgically removed by undergoing a laryngectomy
- laryngotracheal — of, relating to, or involving the larynx and trachea.
- lateran council — any of the five ecumenical councils (1123, 1139, 1179, 1215, 1512–17) held in the Lateran Palace.
- latino-american — an American who is of Latin-American or Spanish origin
- lavender cotton — a silvery-gray, evergreen, woody composite plant, Santolina chamaecyparissus, of southern Europe, having yellow flower heads.
- law-enforcement — of police, anti-crime
- lazaro cardenas — Lázaro [lah-sah-raw] /ˈlɑ sɑˌrɔ/ (Show IPA), 1895–1970, Mexican general and political reformer: president 1934–40.
- lean production — Lean production is the same as lean manufacturing.
- learned society — an organization devoted to the scholarly study of a particular field or discipline, as modern languages, psychology, or history.
- lex non scripta — unwritten law; common law.
- liaison officer — a person who liaises between groups or units
- limiting factor — Physiology. the slowest, therefore rate-limiting, step in a process or reaction involving several steps.
- linear collider — a particle accelerator in which two beams of particles are made to collide
- linear function — linear transformation.
- liver complaint — an unspecified health problem concerning the liver
- locutionary act — the act of uttering a sentence considered only as such
- long-grain rice — a type of rice that has long grains, rather than round grains
- long-sufferance — long-suffering.
- longhorn cattle — cattle of a long-horned breed, usually red or variegated, formerly common in SW US
- lord chancellor — the highest judicial officer of the British crown: law adviser of the ministry, keeper of the great seal, presiding officer in the House of Lords, etc.
- lubricating oil — an oily substance that is used to cover or treat machinery so as to lessen friction
- macaroni cheese — Macaroni cheese is a dish made from macaroni and cheese sauce.
- macroprudential — Of or pertaining to systemic prudence, especially to the strengths and vulnerabilities of financial systems.
- macrosporangium — megasporangium.
- magnetic course — a course whose bearing is given relative to the magnetic meridian of the area.
- magnetic mirror — a region in a magnetic bottle where the magnetic field increases abruptly, causing charged particles that enter it to be reflected.