13-letter words containing y, r
- martyrization — The act or process of martyrizing.
- martyrologies — Plural form of martyrology.
- mass hysteria — a condition affecting a group of persons, characterized by excitement or anxiety, irrational behavior or beliefs, or inexplicable symptoms of illness.
- master policy — a single policy covering a group of people, typically employees of a company, issued to an employer.
- matagorda bay — a bay in SE Texas, at the mouth of the Colorado River, separated from the Gulf of Mexico by the Matagorda Peninsula. About 50 miles (80 km) long.
- maternity pay — the pay a woman receives from her work during her absence immediately before and after childbirth
- matriculatory — relating to matriculation
- matrifocality — The state or condition of being matrifocal; matriarchy.
- matrilineally — In matrilineal fashion.
- matrimonially — In a matrimonial way.
- mayor's court — a city court presided over by a mayor.
- measurability — capable of being measured.
- medullary ray — (in the stems of woody plants) one of the vertical bands or plates of unspecialized tissue that radiate between the pith and the bark.
- megacaryocyte — Alternative form of megakaryocyte.
- megakaryocyte — a large bone-marrow cell having a lobulate nucleus, regarded as the source of blood platelets.
- megasporocyte — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
- melrose abbey — a ruined Cistercian abbey in Melrose in Scottish Borders: founded in 1136 and sacked by the English in 1385 and 1547: repaired in 1822 by Sir Walter Scott
- mensurability — The quality of being mensurable.
- merchant navy — commercial ships
- mercy killing — euthanasia (def 1).
- meridionality — the quality or state of being on the meridian
- meritoriously — deserving praise, reward, esteem, etc.; praiseworthy: to receive a gift for meritorious service.
- merleau-ponty — Maurice, 1908–61, French phenomenological philosopher.
- merry dancers — the aurora borealis
- merrythoughts — Plural form of merrythought.
- mesmerizingly — In a way or to an extent that mesmerizes.
- messenger boy — A messenger boy is a boy who is employed to take messages to people.
- metallography — the study of the structure of metals and alloys by means of microscopy.
- metamerically — In a metameric manner.
- metaphoricity — The power of a metaphor.
- methoxy group — the univalent group CH 3 O−.
- methylmercury — any of several extremely toxic organometallic compounds, Hg(CH 3) 2 , formed from metallic mercury by the action of microorganisms and capable of entering the food chain: used as seed disinfectants.
- methylparaben — a fine, white, needlelike substance, C 8 H 8 O 3 , used chiefly as a preservative in foods and pharmaceuticals.
- methylpropane — (organic compound) isobutane.
- methylpropene — (organic compound) IUPAC name for isobutylene.
- metric martyr — a shopkeeper or trader willing to be prosecuted for continuing to use only imperial measures as a protest against the perceived imposition of metric measures by the European Union
- metric system — a decimal system of weights and measures, adopted first in France but now widespread, universally used in science, mandatory for use for all purposes in a large number of countries, and favored for use in most (as in the U.S.). The basic units are the meter (39.37 inches) for length and the gram (15.432 grains) for mass or weight. Derived units are the liter (0.908 U.S. dry quart, or 1.0567 U.S. liquid quart) for capacity, being the volume of 1000 grams of water under specified conditions; the are (119.6 square yards) for area, being the area of a square 10 meters on a side; and the stere (35.315 cubic feet) for volume, being the volume of a cube 1 meter on a side, the term “stere,” however, usually being used only in measuring firewood. Names for units larger and smaller than these are formed from the above names by the use of the following prefixes: kilo-, 1000; hecto-, 100; deka-, 10; deci-, 0.1; centi-, 0.01; milli-, 0.001. To these are often added: tera-, one trillion; giga-, one billion; mega-, one million. With the addition of basic physical units it is now officially known by the French name Le Système International d'Unités (abbreviation SI, ) or in English as the International System of Units.
- micro-brewery — A micro-brewery is a type of small brewery where beer is produced using traditional methods.
- microanalyses — Plural form of microanalysis.
- microanalysis — Chemistry. the analysis of very small samples of substances.
- microaneurysm — An extremely small aneurysm.
- microcrystals — Plural form of microcrystal.
- microhomology — (genetics) The presence of the same short sequence of bases in different genes.
- micropayments — Plural form of micropayment.
- microphyllous — having microphylls
- microporosity — the state of being microporous
- microtonality — any musical interval smaller than a semitone, specifically, a quarter tone.
- midday prayer — the fourth of the seven canonical hours; sext
- midi-pyrénées — a region of SW France: consists of N slopes of the Pyrenees in the south, a fertile lowland area in the west crossed by the River Garonne, and the edge of the Massif Central in the north and east
- midsummer day — the saint's day of St. John the Baptist, celebrated on June 24, being one of the four quarter days in England.