13-letter words containing a, c, h, l, s
- machiavellism — of, like, or befitting Machiavelli.
- machine-steel — low-carbon steel that can be easily machined.
- macrocephalus — Alternative spelling of macrocephalous.
- magnet school — a public school with special programs and instruction that are not available elsewhere in a school district and that are specially designed to draw students from throughout a district, especially to aid in desegregation.
- matchlessness — The state or condition of being matchless.
- melancholious — (obsolete) melancholy.
- melanochroous — having dark-coloured or black skin
- mesaticephaly — the state or condition of being mesaticephalic or mesocephalic
- mesencephalic — Anatomy. the midbrain.
- mesencephalon — Anatomy. the midbrain.
- mesocephalism — mesocephaly
- mesocephalous — Alternative form of mesocephalic.
- methodistical — Methodistic.
- michelin star — a mark of distinction awarded by the Michelin travel guides to a restaurant in recognition of the high quality of its cooking. A restaurant may receive one, two, or three stars, representing very good, exceptional, or exquisite cuisine, respectively
- microcephalus — An abnormally small head.
- muscle shoals — former rapids of the Tennessee River in SW Alabama, changed into a lake by Wilson Dam: part of the Tennessee Valley Authority.
- necrophiliacs — Plural form of necrophiliac.
- nicholasville — a town in central Kentucky.
- nightcrawlers — Plural form of nightcrawler.
- non-spherical — having the form of a sphere; globular.
- nonhistorical — Not based on or drawn from history.
- nonhysterical — not hysterical or funny
- normal school — (formerly) a school offering a two-year course and certification to high-school graduates preparing to be teachers, especially elementary-school teachers.
- opthalmoscope — Misspelling of ophthalmoscope.
- orchestralist — a person who writes or arranges orchestral music
- orthosilicate — a silicate mineral
- oscillographs — Plural form of oscillograph.
- oscillography — a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
- paring chisel — a woodworking chisel moved by steady hand pressure to make long, light cuts.
- pas de cheval — a step in which the dancer hops on one foot and paws the ground with the other.
- passchendaele — a village in NW Belgium, in West Flanders province: the scene of heavy fighting during the third battle of Ypres in World War I during which 245 000 British troops were lost
- peach blossom — the flower of the peach tree: the state flower of Delaware.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- phallic phase — the time from about age three to five when the genitals become the focus of a child's sensual pleasure.
- phelloplastic — an image or a representation that has been fashioned from cork
- philosophical — of or relating to philosophy: philosophical studies.
- phlogisticate — to integrate or blend phlogiston with
- photovoltaics — (used with a singular verb) a field of semiconductor technology involving the direct conversion of electromagnetic radiation as sunlight, into electricity.
- phyllocladous — having phylloclades.
- physical file — (file system) A low-level view of the physical characteristics of a file, such as its location on a disk or its physical structure, for example, whether indexed or sequential.
- physicalistic — of or relating to physicalism.
- physicalities — the physical attributes of a person, especially when overdeveloped or overemphasized.
- physiological — of or relating to physiology.
- plain-clothes — Plain-clothes police officers wear ordinary clothes instead of a police uniform.
- postholocaust — following a holocaust
- prague school — a school of linguistics emphasizing structure, active in the 1920s and 1930s.
- principalship — first or highest in rank, importance, value, etc.; chief; foremost.
- psilanthropic — relating to psilanthropism
- psychoanalyse — to investigate or treat by psychoanalysis.
- psychoanalyst — a person trained to practice psychoanalysis.