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MRI abbreviation of "magnetic resonance imaging," a non-invasive medical imaging technology using radio waves and powerful magnetic fields to make the interior of the human body visible in three dimensions and in real time.
Mrs. abbreviation of "Mistress," used as a conventional title of courtesy for a married woman and usually placed before the name she has taken in marriage.
Mrs. Grundy in Tom Morton's eighteenth-century play Speed the Plough, a character who never appears, but who is known as a stern, moralistic upholder of propriety. [2 definitions]
Mrs. Malaprop in the eighteenth-century play The Rivals by Richard Sheridan, a character who makes hilarious blunders in her use of language. (Cf. malapropism.)
MS1 abbreviation of "Mississippi," a U.S. state on the Gulf of Mexico between Alabama and Louisiana.
MS2 abbreviation of "multiple sclerosis," a degenerative disease of the nervous system in which nerve cells of the brain or spinal cord lose their myelin sheaths, resulting in hardening of the neural tissue, speech difficulties, and loss of muscular coordination.
MS3 abbreviation of "manuscript," a text as prepared by the author to submit for publication.
Ms. a conventional title of courtesy often used before the surname of a single or married woman.
M.S. abbreviation of "Master of Science," a master's degree awarded usu. in science, technology, or mathematics.
MSDS an abbreviation for "Material Safety Data Sheet." An MSDS tells the proper, safe way to handle a particular substance.
MSG abbreviation of "monosodium glutamate," a white crystalline powder that intensifies the flavor of foods, esp. meat, often used in Chinese cuisine.
Msgr. (sometimes l.c.) abbreviation of "Monsignor," a title conferred upon certain prelates, such as dignitaries of the Roman Catholic Church.
m'sieur contracted form of "monsieur".
MSS abbreviation of "manuscripts."
MST abbreviation of "Mountain Standard Time," the standard time used in the Rocky Mountain region of the United States, seven hours behind Greenwich time.
MT abbreviation of "Montana," a northwestern U.S. state on the Canadian border between North Dakota and Idaho.
Mt. abbreviation of "mount" or "mountain."
Mt. Hime also known as Himeyama, site of Himeji Castle in Hyogo Prefecture, Japan.
mtn. an abbreviation of "mountain."
mu the name of the twelfth letter of the Greek alphabet.
much great in degree, number, or amount. [5 definitions]