12-letter words containing r, i, e, m, a
- ameliorative — Able to repair or ameliorate.
- amelioratory — tending to ameliorate
- amenorrhoeic — absence of the menses.
- amentiferous — bearing aments
- american elk — elk (def 2).
- american elm — an elm, Ulmus americana, of North America, cultivated for shade and ornament: state tree of Massachusetts, Nebraska, and North Dakota.
- american ivy — a vitaceous woody vine, Parthenocissus quinquefolia, of North America, having tendrils with adhesive tips, bluish-black berry-like fruits, and compound leaves that turn red in autumn: widely planted for ornament
- american rig — a rig for drilling oil and gas wells by using a chisel bit dropped from a considerable height.
- americanisms — a custom, trait, belief, etc., peculiar to the United States of America or its citizens.
- americanized — If someone is Americanized, they do things in a way that is typical of the United States.
- americanness — of or relating to the United States of America or its inhabitants: an American citizen.
- amethopterin — (now rare) Methotrexate.
- amor patriae — love of one's country; patriotism
- amortizement — a sloping top on a buttress, pillar, etc.
- amperometric — relating to or involving the measurement of an electric current
- amphiregulin — (protein) A particular autocrine growth factor.
- amphitheater — An amphitheater is a large open area surrounded by rows of seats sloping upward. Amphitheaters were built mainly in Greek and Roman times for the performance of plays.
- amphitheatre — An amphitheatre is a large open area surrounded by rows of seats sloping upwards. Amphitheatres were built mainly in Greek and Roman times for the performance of plays.
- amphotericin — an amphoteric antibiotic produced by the bacterium Streptomyces nodosus and used in the treatment of fungal infections.
- amyl nitrite — a yellowish unstable volatile fragrant liquid used in medicine as a vasodilator and in perfumes. Formula: (CH3)2CHCH2CH2NO2
- anemotropism — orientation in response to a current of air.
- aneurysmatic — (medicine) Describing a blood vessel that has an aneurysm; aneurysmal.
- animadverted — Simple past tense and past participle of animadvert.
- animadverter — a person who expresses his or her opinion without fear of criticism or rebuke
- animal lover — a person who feels fondness for animals
- anisothermal — (thermodynamics) Of or pertaining to a system that is not in thermal equilibrium, that does not have a single fixed temperature.
- antebrachium — (anatomy) The forearm.
- antemeridian — before noon; in the morning
- anti-realism — interest in or concern for the actual or real, as distinguished from the abstract, speculative, etc.
- anticonsumer — opposed to consumerism
- antimaterial — Lb particle physics Composed of antimatter.
- antiparabema — either of two chapels at the west end of an Armenian or Byzantine church.
- antireformer — One who opposes reform.
- antisymmetry — the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point; regularity of form or arrangement in terms of like, reciprocal, or corresponding parts.
- apartmentize — to build apartments on or in: to apartmentize the downtown area.
- appraisement — the act of estimating or judging the nature or value of something or someone.
- appressorium — a flattened hypha of a parasitic fungus that penetrates the host tissues
- approximated — near or approaching a certain state, condition, goal, or standard.
- approximates — near or approaching a certain state, condition, goal, or standard.
- aramid fiber — a fiber having resistance to high temperatures and great strength, formed from an aramid and used in materials for bulletproof vests and radial tires.
- archesporium — archespore.
- archiphoneme — an abstract linguistic unit representing two or more phonemes when the distinction between these has been neutralized: conventionally shown by a capital letter within slashes, as /T/ for /t/ and /d/ in German Rat and Rad
- area bombing — aerial bombing in which bombs are dropped over the general area of a target.
- arithmetical — Arithmetical calculations, processes, or skills involve the addition, subtraction, multiplication, or division of numbers.
- armamentaria — the aggregate of equipment, methods, and techniques available to one for carrying out one's duties: The stethoscope is still an essential part of the physician's armamentarium.
- arming chest — a chest for holding armor and weapons.
- army officer — a person in the army who holds a position of authority, responsibility and duty, especially one who holds a commission
- arraignments — Plural form of arraignment.
- arrival time — the time when someone or something arrives, arrived, or will arrive
- arsphenamine — a drug containing arsenic, formerly used in the treatment of syphilis and related infections