15-letter words that end in m
- photojournalism — journalism in which photography dominates written copy, as in certain magazines.
- plant-hire firm — a company that hires out mobile mechanical equipment for construction, road-making, etc
- poikilothermism — the state or quality of being cold-blooded, as fishes and reptiles.
- polysyllabicism — a polysyllabic style
- pre-romanticism — romantic spirit or tendency.
- preferentialism — the economic system of preference, esp amongst British commonwealth countries
- preformationism — the belief in the theory of preformation
- presbyterianism — church government by presbyters or elders, equal in rank and organized into graded administrative courts.
- presentationism — the doctrine that in perception, or in all forms of knowledge, there is an immediate awareness of the things perceived.
- preservationism — a person who advocates or promotes preservation, especially of wildlife, natural areas, or historical places.
- professionalism — professional character, spirit, or methods.
- projection room — projection booth (def 1).
- protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
- purple trillium — birthroot (def 1).
- qualifying exam — any examination that one needs to pass in order to begin or continue with a course of study
- recreation room — (in a home or public building) a room for informal entertaining, as for dancing, games, cards, etc.
- regular premium — A regular premium is money paid to buy insurance coverage in installments at particular time intervals, such as monthly or annually.
- resurrectionism — the exhumation and stealing of dead bodies, especially for dissection.
- reverse transom — a surface forming the stern of a vessel, canted forwards at the upper side
- right of asylum — the right of alien fugitives to protection or nonextradition in a country or its embassy.
- rolle's theorem — the theorem that a differentiable function having equal values at the endpoints of an interval has a derivative equal to zero at some point in the interval.
- run-time system — (programming) (RTS, run-time support, run-time) Library code and processes which support software written in a particular language running on a particular platform. The RTS typically deals with details of the interface between the program and the operating system such as system calls, program start-up and termination, and memory management.
- rutherford atom — the atom postulated as analogous to the solar system, with electrons revolving around a small, central, positive nucleus that constitutes practically the entire mass of the atom
- sacred mushroom — any of various hallucinogenic mushrooms, esp species of Psilocybe and Amanita, that have been eaten in rituals in various parts of the world
- scatter diagram — a graphic representation of bivariate data as a set of points in the plane that have Cartesian coordinates equal to corresponding values of the two variates.
- schola cantorum — an ecclesiastical choir or choir school.
- school-gate mum — a young family-oriented working mother, considered by political parties as forming a significant part of the electorate
- schopenhauerism — the philosophy of Schopenhauer, who taught that only the cessation of desire can solve the problems arising from the universal impulse of the will to live.
- scolopendriform — resembling scolopendra
- scpi consortium — (body) A body established to promote Standard Commands for Programmable Instruments. Address: 8380 Hercules Drive, Suite P3, La Mesa, CA 91942, USA.
- secondary xylem — xylem derived from the cambium during secondary growth.
- securities firm — a firm that deals in securities
- semicolonialism — the state of being semicolonial
- service uniform — a uniform for routine duties and service, as distinguished from work, dress, or full-dress uniforms.
- servo-mechanism — A servo-mechanism is a system or device that provides increased power to operate a control.
- shalom aleichem — Sholom [shaw-luh m] /ˈʃɔ ləm/ (Show IPA), or Sholem [shoh-lem,, -luh m] /ˈʃoʊ lɛm,, -ləm/ (Show IPA), or Shalom [shah-lohm] /ʃɑˈloʊm/ (Show IPA), (pen name of Solomon Rabinowitz) 1859–1916, Russian author of Yiddish novels, plays, and short stories; in the U.S. from 1906.
- sholem aleichem — Sholom [shaw-luh m] /ˈʃɔ ləm/ (Show IPA), or Sholem [shoh-lem,, -luh m] /ˈʃoʊ lɛm,, -ləm/ (Show IPA), or Shalom [shah-lohm] /ʃɑˈloʊm/ (Show IPA), (pen name of Solomon Rabinowitz) 1859–1916, Russian author of Yiddish novels, plays, and short stories; in the U.S. from 1906.
- sholom aleichem — Sholom [shaw-luh m] /ˈʃɔ ləm/ (Show IPA), or Sholem [shoh-lem,, -luh m] /ˈʃoʊ lɛm,, -ləm/ (Show IPA), or Shalom [shah-lohm] /ʃɑˈloʊm/ (Show IPA), (pen name of Solomon Rabinowitz) 1859–1916, Russian author of Yiddish novels, plays, and short stories; in the U.S. from 1906.
- shot in the arm — a discharge of a firearm, bow, etc.
- simple pendulum — a hypothetical apparatus consisting of a point mass suspended from a weightless, frictionless thread whose length is constant, the motion of the body about the string being periodic and, if the angle of deviation from the original equilibrium position is small, representing simple harmonic motion (distinguished from physical pendulum).
- soft-shell clam — an edible clam, Mya arenaria, inhabiting waters along both coasts of North America, having an oval, relatively thin, whitish shell.
- sons of freedom — a Doukhobor sect, located largely in British Columbia: notorious for its acts of terrorism in opposition to the government in the 1950s and 1960s
- sound symbolism — a nonarbitrary connection between phonetic features of linguistic items and their meanings, as in the frequent occurrence of close vowels in words denoting smallness, as petite and teeny-weeny.
- spelling reform — an attempt to change the spelling of English words to make it conform more closely to pronunciation.
- spread-eagleism — boastfulness or bombast, especially in the display of patriotic or nationalistic pride in the U.S.; flag-waving.
- sri-vaishnavism — a Hindu sect advocating theistic devotion as a philosophically and scripturally valid way to achieve salvation.
- state socialism — the theory, doctrine, and movement advocating a planned economy controlled by the state, with state ownership of all industries and natural resources.
- stereoisomerism — the isomerism ascribed to different relative positions of the atoms or groups of atoms in the molecules of organic compounds.
- sublapsarianism — infralapsarianism.
- supernaturalism — supernatural character or agency.