11-letter words containing a, t, p, o
- invert soap — cationic detergent.
- ipratropium — an anticholinergic bronchodilator that is used esp in the treatment of certain forms of asthma
- isapostolic — contemporaneous with, or equal to, the twelve apostles
- isometropia — equality of refraction in the two eyes of an individual.
- isophthalic — Of or pertaining to isophthalic acid and its derivatives.
- 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
- jehoshaphat — a king of Judah, son of Asa, who reigned in the 9th century b.c. I Kings 22:41–50.
- jumpstation — A site on the World Wide Web containing a collection of hypertext links, usually to pages on a particular topic.
- 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.
- juxtaposing — to place close together or side by side, especially for comparison or contrast.
- karate chop — a sharp blow used in karate, usually delivered by a slanting stroke with the side of the hand.
- karate-chop — a sharp blow used in karate, usually delivered by a slanting stroke with the side of the hand.
- karyotyping — the analysis of chromosomes.
- keratophyre — a fine-grained soda trachyte
- 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.
- kinetograph — a camera for taking pictures for a kinetoscope.
- kinetoplast — A mass of mitochondrial DNA lying close to the nucleus in some flagellate protozoa.
- kleptocracy — a government or state in which those in power exploit national resources and steal; rule by a thief or thieves.
- kleptocrats — Plural form of kleptocrat.
- kleptomania — an irresistible impulse to steal, stemming from emotional disturbance rather than economic need.
- labor party — one of the chief political parties of Australia, generally supporting the interests of organized labour
- laparectomy — excision of strips of the abdominal wall and suturing of the wounds so as to correct laxity of the abdominal muscles.
- lappet moth — a large purple-brown hairy eggar moth, Gastropacha quercifolia, whose grey furry caterpillars have lappets on each flank
- last gospel — in the order of service for the Mass, the final reading of a Gospel lesson.
- lepidoptera — the order comprising the lepidopterous insects.
- lepromatous — the swollen lesion of leprosy.
- leptocercal — having a long thin tail
- leptodactyl — leptodactylous
- leptospiral — relating to, caused by, or characteristic of leptospires
- leucoplasts — Plural form of leucoplast.
- light opera — operetta.
- lipoatrophy — (medicine) The loss of subcutaneous fatty tissue.
- lipomatosis — a genetic disorder which manifests itself in the abnormal growth of fat
- lithographs — Plural form of lithograph.
- lithography — the art or process of producing a picture, writing, or the like, on a flat, specially prepared stone, with some greasy or oily substance, and of taking ink impressions from this as in ordinary printing.
- litholapaxy — the procedure of removing bladder stones by crushing them and extracting them through a catheter
- local stamp — stamp (def 22).
- logotherapy — (psychotherapy) A therapy that involves finding the meaning of one's life.
- lone parent — a parent who is not married and does not have a partner, who is bringing up a child or children
- lost pleiad — See under Pleiades (def 1).
- lycanthrope — a person affected with lycanthropy.
- lycanthropy — a delusion in which one imagines oneself to be a wolf or other wild animal.
- lymphoblast — a large, metabolically active lymphocyte shortly before it enters into mitosis.
- macrophytes — Plural form of macrophyte.
- macrophytic — Relating to macrophytes.
- madreporite — a sievelike plate in certain echinoderms, through which water passes into the vascular system.
- magpie moth — a geometrid moth, Abraxas grossulariata, showing variable patterning in black on white or yellow, whose looper larvae attack currant and gooseberry bushes. The paler clouded magpie is A. sylvata