12-letter words containing a, m, p, r
- dermographic — dermatographia.
- diastrophism — the process of movement and deformation of the earth's crust that gives rise to large-scale features such as continents, ocean basins, and mountains
- diet pyramid — food pyramid (def 2).
- dipyridamole — a yellow crystalline powder, C 24 H 40 N 8 O 4 , used prophylactically for angina pectoris and in combination with other drugs to reduce thrombus formation.
- disopyramide — a substance, C 21 H 29 N 3 O, used in its phosphate form in the symptomatic and prophylactic treatment of certain cardiac arrhythmias.
- distemperate — (obsolete) immoderate.
- dolphinarium — An aquarium in which dolphins are kept and trained for public entertainment.
- domino paper — a marbleized or figured decorative paper, used for wallpaper, end papers, etc., printed from wood blocks and colored by hand.
- dopaminergic — activated by or sensitive to dopamine.
- drapetomania — (dated) an overwhelming urge to run away (from home, a bad situation, responsibility, etc.).
- ekman spiral — a complex interaction on the surface of the sea between wind, rotation of the earth, and friction forces, discovered by Vagn Walfrid Ekman
- emancipators — Plural form of emancipator.
- emancipatory — Of or pertaining to emancipation or to an emancipator.
- emancipatrix — A woman, girl, or any other entity treated as female who emancipates; a female emancipator.
- empire state — state of New York
- empyreumatic — relating to empyreuma
- enantiomorph — Each of two crystalline or other geometric forms that are mirror images of each other.
- ephemerality — (uncountable) The state or condition of being ephemeral; transience.
- ephemeridian — relating to ephemera
- epicureanism — An ancient school of philosophy founded in Athens by Epicurus. The school rejected determinism and advocated hedonism (pleasure as the highest good), but of a restrained kind: mental pleasure was regarded more highly than physical, and the ultimate pleasure was held to be freedom from anxiety and mental pain, esp. that arising from needless fear of death and of the gods.
- epigrammatic — Of the nature or in the style of an epigram; concise, clever, and amusing.
- epirrhematic — relating to epirrhema
- ergastoplasm — endoplasm that is associated with protein synthesis
- examinership — the office or function of an examiner
- expatriatism — The condition of being an expatriate, especially a deliberate one.
- experimental — (of a new invention or product) based on untested ideas or techniques and not yet established or finalized.
- express mail — mail delivered quicker than normal mail
- extemporally — In an extemporal manner.
- extracampine — (psychiatry, of hallucination) Beyond the possible sensory field.
- extropianism — Belief in, or support for, the theory of extropy.
- fairy shrimp — any member of the crustacean order Anostraca, characterized by an elongate trunk with more than 20 segments and the absence of a carapace, typically found swimming ventral side up in fresh water.
- farm produce — agricultural products regarded collectively
- feather palm — any palm having large pinnate or bipinnate leaves, as the date palm or royal palm.
- fermat prime — (mathematics) A prime number of the form 2^2^n + 1. Any prime number of the form 2^n+1 must be a Fermat prime. Fermat conjectured in a letter to someone or other that all numbers 2^2^n+1 are prime, having noticed that this is true for n=0,1,2,3,4. No further Fermat primes are known; several have been factorised, and several more have been proved composite without finding explicit factorisations.
- fire company — a company of firefighters.
- flameproofed — Simple past tense and past participle of flameproof.
- flameproofer — any agent which renders something flameproof
- floor sample — an appliance, piece of furniture, or other article of merchandise that has been used for display or demonstration and is usually offered at a reduced price.
- food pyramid — successive levels of predation in a food chain represented schematically as a pyramid because upper levels normally consist of decreasing numbers of larger predators.
- fore-topmast — the spar or section of a pole mast serving as the topmast of a foremast on a ship.
- foreman-ship — a person in charge of a particular department, group of workers, etc., as in a factory or the like.
- foretopmasts — Plural form of foretopmast.
- frank murphy — Frank, 1890–1949, U.S. statesman and jurist: associate justice of the U.S. Supreme Court 1940–49.
- free company — a band of free companions.
- freshmanship — the state of being a freshman; the period during which a student is considered to be a freshman
- gametophores — Plural form of gametophore.
- garbage dump — rubbish tip, place where refuse is disposed of
- germanophile — a person who is friendly toward or admires or studies Germany or German culture.
- germanophobe — a person who hates or fears Germany, Germans, or German culture.
- glamour puss — a person with an unusually attractive face.