13-letter words containing a, p, o, n
- lactoproteins — Plural form of lactoprotein.
- lamellaphones — Plural form of lamellaphone.
- landownership — an owner or proprietor of land.
- lap of honour — If the winner of a race or game does a lap of honour, they run or drive slowly around a race track or sports field in order to receive the applause of the crowd.
- laryngoscopes — Plural form of laryngoscope.
- laryngoscopic — Of or pertaining to laryngoscopy.
- 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.
- leap-frogging — a game in which players take turns in leaping over another player bent over from the waist.
- lepidopterans — Plural form of lepidopteran.
- linkage group — a group of genes in a chromosome that tends to be inherited as a unit.
- lithographing — Present participle of lithograph.
- locking plate — a narrow wheel geared to a striking train or other mechanism and having a notched rim engaging with another mechanism permitting it to rotate through a specific arc.
- longleaf pine — an American pine, Pinus palustris, valued as a source of turpentine and for its timber.
- lycanthropous — Lycanthropic.
- lymphangiomas — Plural form of lymphangioma.
- macropinacoid — a crystalline pinacoid which runs parallel to the longer horizontal axis
- macroplankton — planktonic organisms of about 1 mm in length.
- magnetic pole — the region of a magnet toward which the lines of magnetic induction converge (south pole) or from which the lines of induction diverge (north pole)
- magnetographs — Plural form of magnetograph.
- magnetooptics — the branch of physics that deals with magnetooptic phenomena.
- magnetosphere — the outer region of the earth's ionosphere, where the earth's magnetic field controls the motion of charged particles, as in the Van Allen belts. Compare magnetopause.
- major penalty — a penalty consisting of the removal of a player for five minutes from play, no substitute for the player being permitted.
- make position — the situation in which a short vowel may be regarded as long, that is, when it occurs before two or more consonants
- malabsorption — faulty absorption of nutritive material from the intestine.
- maladaptation — incomplete, inadequate, or faulty adaptation.
- maldeployment — the inefficient use of resources or an instance of such
- malonyl group — the bivalent group C 3 H 2 O 2 , derived from malonic acid.
- manipulations — Plural form of manipulation.
- mansplanation — Also called mansplanation [man-spluh-ney-shuh n] /ˌmæn spləˈneɪ ʃən/ (Show IPA). such an explanation given to someone, usually a woman.
- mastigophoran — Also, mastigophore [mas-ti-guh-fawr, -fohr] /ˈmæs tɪ gəˌfɔr, -ˌfoʊr/ (Show IPA). a protozoan of the phylum Mastigophora.
- megalopolitan — of, relating to, or characteristic of a megalopolis.
- megasporangia — a sporangium containing megaspores.
- membranophone — any musical instrument, as a drum, in which the sound is produced by striking, rubbing, or blowing against a membrane stretched over a frame.
- merleau-ponty — Maurice, 1908–61, French phenomenological philosopher.
- mesencephalon — Anatomy. the midbrain.
- metallophones — Plural form of metallophone.
- metencephalon — the anterior section of the hindbrain, comprising the cerebellum and pons.
- methylpropane — (organic compound) isobutane.
- metropolitans — Plural form of metropolitan.
- mexican poppy — any tropical American poppy of the genus Argemone, especially A. mexicana (Mexican poppy) having prickly pods and leaves and yellow or white, poppylike flowers.
- mezzo soprano — a voice or voice part intermediate in compass between soprano and contralto.
- mezzo-soprano — a voice or voice part intermediate in compass between soprano and contralto.
- micropayments — Plural form of micropayment.
- microperation — (processor) An elementary operation performed on data stored in registers or in memory. Microperations are classified as transfer, arithmetic, logic, or shift/rotate.
- microplankton — plankton visible as individual organisms only with the aid of a microscope, which excludes most animal plankton.
- mimeographing — Present participle of mimeograph.
- mindanao deep — an area in the Pacific Ocean W of the Philippines: one of deepest points in any ocean. 34,440 feet (10,497 meters).
- mine disposal — the removal, disarming, or destruction of explosive mines
- minor penalty — a penalty consisting of the removal of a player from play for two minutes, no substitute for the player being permitted.