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WordReference Random House Learner's Dictionary of American English © 2024mega-, prefix. - mega- comes from Greek, where it has the meaning:
- extremely large, huge:megalith (= extremely large stone or rock); megastructure (= a huge structure).
- mega- is also used to mean one million of the units of (the base root or word):megahertz (= one million hertz); megaton (= one million tons).
- mega- also means very large quantities or amounts:megabucks (= a great deal of money); megadose (= a large dose of medicine).
- mega- also means things that are extraordinary examples of their kind:megahit (= a smash movie or stage hit); megatrend (= important, very popular trend).
WordReference Random House Unabridged Dictionary of American English © 2024Meg (meg),USA pronunciation n. - a female given name, form of Margaret.
MEG, - Medicinemagnetoencephalogram.
meg, [Elect.]- Electricitymegohm;
megohms.
WordReference Random House Unabridged Dictionary of American English © 2024mega-, - var. of megalo- (megalith);
also the initial element in units of measure that are equal to one million of the units denoted by the base word (megahertz). Symbol: M
Also,[esp. before a vowel,] meg-. - combining form representing Greek mégas large, great
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