13-letter words containing a, e, r, i, l, o
- interproximal — situated toward the point of origin or attachment, as of a limb or bone. Compare distal (def 1).
- interregional — of or relating to a region of considerable extent; not merely local: a regional meeting of the Boy Scouts.
- interrelation — reciprocal relation.
- intersocietal — noting or pertaining to large social groups, or to their activities, customs, etc.
- intertemporal — Describing any relationship between past, present and future events or conditions.
- intertropical — situated or occurring between the tropic of Cancer and the tropic of Capricorn; tropical.
- intolerant of — not able or willing to tolerate
- intrapersonal — existing or occurring within the self or within one's mind: People with high intrapersonal intelligence are aware of their strengths and weaknesses. Intrapersonal conflict can lead to emotional stress.
- intrapetiolar — located between the petiole and the stem
- intraregional — Within a region.
- intravenously — through or within a vein. Abbreviation: IV.
- inventoriable — 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.
- involute gear — a gear tooth form that is generated by involute geometry
- irrationalise — Alt form irrationalize.
- irrationalize — to make or cause to be irrational.
- irrecoverable — incapable of being recovered or regained: an irrecoverable debt.
- irrecoverably — incapable of being recovered or regained: an irrecoverable debt.
- isle of capri — Capri.
- isometrically — of, relating to, or having equality of measure.
- jointer plane — a plane for truing the edges of boards, planing large surfaces, etc.
- junior league — any local branch of a women's organization, the Association of the Junior Leagues of America, Inc., the members of which are engaged in volunteer welfare work, civic affairs, etc.
- labiogression — location of the anterior teeth forward of their natural position.
- laboriousness — requiring much work, exertion, or perseverance: a laborious undertaking.
- lacrimal bone — a small, thin, membrane bone forming the front part of the inner wall of each orbit.
- lactoproteins — Plural form of lactoprotein.
- ladino clover — a giant variety of white clover, Trifolium repens lodigense, used for pasture and hay.
- laevorotation — a rotation to the left
- lake maggiore — a lake in N Italy and S Switzerland, in the S Lepontine Alps
- lake superior — Lake, a lake in the N central United States and S Canada: the northernmost of the Great Lakes; the largest body of fresh water in the world. 350 miles (564 km) long; 31,820 sq. mi. (82,415 sq. km); greatest depth, 1290 feet (393 meters); 602 feet (183 meters) above sea level.
- lake victoria — the ancient Roman goddess of victory, identified with the Greek goddess Nike.
- lake-superior — Lake, a lake in the N central United States and S Canada: the northernmost of the Great Lakes; the largest body of fresh water in the world. 350 miles (564 km) long; 31,820 sq. mi. (82,415 sq. km); greatest depth, 1290 feet (393 meters); 602 feet (183 meters) above sea level.
- lambeosaurine — Any crested hadrosaurid dinosaur of the subfamily Lambeosaurinae.
- landing force — the ground forces of an amphibious task force that effect the assault landing in an amphibious operation.
- landownership — an owner or proprietor of land.
- laparoscopies — Plural form of laparoscopy.
- large calorie — kilocalorie.
- laryngotomies — Plural form of laryngotomy.
- laser cooling — a technique using laser light to cool atoms to a very low temperature by removing momentum from the particles.
- laser pointer — a portable laser that emits monochromatic light over a long and narrow distance, used especially as a pointing device.
- latent period — Also, latency period. Pathology. the interval between exposure to a carcinogen, toxin, or disease-causing organism and development of a consequent disease.
- lateroversion — abnormal lateral displacement of a bodily organ or part, esp of the uterus
- law stationer — a stationer selling articles used by lawyers
- leap-frogging — a game in which players take turns in leaping over another player bent over from the waist.
- legionary ant — army ant
- legislatorial — of or relating to a legislator, legislature, or legislation; legislative.
- leigh-mallory — Sir Trafford Leigh [traf-erd lee] /ˈtræf ərd li/ (Show IPA), 1892–1944, British Air Force officer.
- lepidopterans — Plural form of lepidopteran.
- lexical order — the arrangement of a set of items in accordance with a recursive algorithm, such as the entries in a dictionary whose order depends on their first letter unless these are the same in which case it is the second which decides, and so on
- lexicographer — a writer, editor, or compiler of a dictionary.
- lexicographic — Like a dictionary, relating to lexicography (the writing of a dictionary).