11-letter words containing r, a, s, p
- invert soap — cationic detergent.
- ipsilateral — pertaining to, situated on, or affecting the same side of the body: ipsilateral paralysis.
- isodiaphere — one of two or more nuclides in which the difference between the number of neutrons and the number of protons is the same
- isometropia — equality of refraction in the two eyes of an individual.
- isopropanol — isopropyl alcohol.
- isospectral — (mathematics) Having the same spectrum.
- iteroparous — (of a plant) producing flowers and fruit more than once (usually many times) before dying
- janitorship — the office of janitor
- jasperizing — Present participle of jasperize.
- jeopardised — Simple past tense and past participle of jeopardise.
- jeopardizes — Third-person singular simple present indicative form of jeopardize.
- jew-s--harp — (sometimes lowercase) a small, simple musical instrument consisting of a lyre-shaped metal frame containing a metal tongue, which is plucked while the frame is held in the teeth, the vibrations causing twanging tones.
- joseph raff — Joseph Joachim, 1822–82, Swiss composer.
- jumpmasters — Plural form of jumpmaster.
- jumpstarted — Simple past tense and past participle of jumpstart.
- justaucorps — a fitted, knee-length coat, characterized by wide turned-back cuffs and stiff flared skirts, worn especially by men in the 17th and 18th centuries.
- keratoscope — an instrument, as Placido's disk, for determining the symmetry of the curvature of the cornea.
- keratoscopy — an instrument, as Placido's disk, for determining the symmetry of the curvature of the cornea.
- khyber pass — the chief mountain pass between Pakistan and Afghanistan, W of Peshawar. 33 miles (53 km) long; 6825 feet (2080 meters) high.
- kiloparsecs — Plural form of kiloparsec.
- klappvisier — a visor attached by a hinge at the top: used on basinets of the 14th century.
- kleptocrats — Plural form of kleptocrat.
- labor pains — childbirth: contractions
- landscapers — Plural form of landscaper.
- laparoscope — a flexible fiberoptic instrument, passed through a small incision in the abdominal wall and equipped with biopsy forceps, an obturator, scissors or the like, with which to examine the abdominal cavity or perform minor surgery.
- laparoscopy — examination of the abdominal cavity or performance of minor abdominal surgery using a laparoscope.
- larviparous — producing larvae, as certain insects and mollusks.
- laser proof — a print proof of an element of a page printed out on a laser printer, so as to give an almost accurate preview of the final printout
- last supper — the supper of Jesus and His disciples on the eve of His Crucifixion. Compare Lord's Supper (def 1).
- leader-ship — the position or function of a leader, a person who guides or directs a group: He managed to maintain his leadership of the party despite heavy opposition. Synonyms: administration, management, directorship, control, governorship, stewardship, hegemony.
- leaderships — Plural form of leadership.
- leaf spring — a long, narrow, multiple spring composed of several layers of spring metal bracketed together: used in some suspension systems of carriages and automobiles.
- leafhoppers — Plural form of leafhopper.
- leopardskin — the skin of a leopard
- leprechauns — a dwarf or sprite.
- lepromatous — the swollen lesion of leprosy.
- leprosarium — a hospital for the treatment of lepers.
- leptospiral — relating to, caused by, or characteristic of leptospires
- letterspace — to space out (the letters of a word or line) for balance or emphasis.
- lex scripta — written law; statute law.
- liposarcoma — (medicine) Any malignant tumour that originates in adipose tissue.
- lithographs — Plural form of lithograph.
- loudspeaker — any of various devices, usually electronic, by which speech, music, etc., can be intensified and made audible throughout a room, hall, or the like.
- lower apsis — See under apsis (def 1).
- lunarscapes — Plural form of lunarscape.
- macrocarpas — Plural form of macrocarpa.
- macrographs — Plural form of macrograph.
- macrophages — Plural form of macrophage.
- macrophytes — Plural form of macrophyte.
- macropodous — (of a leaf) having a long stalk.