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  • Mx
    Mx
    maxwell; maxwells.
  • MX
    MX
    missile experimental: a ten-warhead U.S. intercontinental ballistic missile.
  • Mx.
    Mx.
    a title of respect prefixed to a person's surname: unlike Mr., Mrs., or Ms., it does not indicate gender and may be used by a person with any or no specific gender identity.
  • mx
    mx
    abbreviation
    Mexico
Synonyms

Mx

1 American  
Electricity.
  1. maxwell; maxwells.


MX 2 American  
  1. missile experimental: a ten-warhead U.S. intercontinental ballistic missile.

  2. motocross.


Mx. 3 American  
[miks, muhks] / mɪks, mʌks /
  1. a title of respect prefixed to a person's surname: unlike Mr., Mrs., or Ms., it does not indicate gender and may be used by a person with any or no specific gender identity.


MX 1 British  

abbreviation

  1. missile-experimental: an intercontinental ballistic missile with up to ten nuclear warheads

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Mx 2 British  

symbol

  1. maxwell

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mx 3 British  

abbreviation

  1. Mexico

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of MX2

First recorded in 1970–75; by abbreviation

Origin of Mx.3

First recorded in 1975–80; M (as in Mr./Mrs./Ms. ) + x (symbol for an unknown quantity, person, or thing)


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

At an earlier hearing, the court heard how Castellucci, a cyber security expert from California, uses the title "Mx" and refers to themselves using they/them pronouns.

From BBC ● Feb. 25, 2025

"They both prefer offshore deeper waters, so it's quite unusual to spot them close to land," said Mx Cowen who uses "they" and "them" as personal pronouns.

From BBC ● Jan. 9, 2025

Now aged 26, Mx Sharman has donated three times and shares their egg donation journey on TikTok.

From BBC ● Aug. 7, 2024

“Everybody had a bad reaction to it,” said Mx.

From New York Times ● Aug. 22, 2023

At, feeler; Mn, mandible; Mx, maxilla; Lm, labium, spinneret projecting beyond it.

From The Life-Story of Insects by George H. (George Herbert) Carpenter

“It’s a close match; there are star players on both teams,” said Álex Aguinaga, a former Ecuadorian player and Liga MX legend who is now a commentator for Fox Sports.

From Los Angeles Times ● Jun. 30, 2026

Borod says that Polymarket won’t offer Liga MX markets that raise integrity concerns, and that access to official league data allows for real-time trading surveillance.

From Barron's ● Jun. 11, 2026

“We’re proud to support this partnership by providing the official data and integrity infrastructure that helps power transparent, trusted prediction markets around Liga MX competitions,” Genius Sports CEO Mark Locke said in a press release.

From Barron's ● Jun. 11, 2026

His goals for Guadalajara in their run to the title play-off round semi-final of Liga MX saw him break through to the national side.

From BBC ● Jun. 9, 2026

MIRVs, which encompassed the land-based MX missile program, were the ultimate product of Livermore’s long quest for a high-yield, low-weight nuclear device.

From "Big Science" by Michael Hiltzik

Last month, she won an invitation-only competition at Queer/Bar, The Final Girls, and June 16 marked her first performance as a regular cast member of the bar’s Mx. show.

From Seattle Times ● Jun. 24, 2023

One footnote in the filings said: “They use they/them pronouns, and for the purposes of all formal filings, will be addressed as Mx. Aldrich.”

From New York Times ● Nov. 23, 2022

“Anderson Aldrich is nonbinary. They use they/them pronouns, and for the purposes of all formal fillings, will be addressed as Mx. Aldrich,” the attorneys said in a footnote on the filing.

From Washington Times ● Nov. 23, 2022

"Anderson Aldrich is non-binary. They use they/them pronouns, and for the purposes of all formal filings, will be addressed as Mx. Aldrich," a footnote in a court filing reads by their defense team.

From Salon ● Nov. 23, 2022

“Maybe we should let Mx. Desi know that there’s a flying fire type outside their door?”

From "A Bird Will Soar" by Alison Green Myers

Please note that in previous courses you learned y = mx + b was the slope-intercept form of the equation, where m represented the slope and b represented the y-intercept.

From Textbooks ● Mar. 27, 2020

The equation for a straight line is y = mx + b .

From Textbooks ● Aug. 12, 2015

Additional general information can be obtained from Figure 2.62 and the expression for a straight line, y = mx + b .

From Textbooks ● Aug. 12, 2015

Algebraically, a linear equation typically takes the form y = mx + b, where m and b are constants, x is the independent variable, y is the dependent variable.

From Textbooks ● Sep. 19, 2013

Equations which are homogeneous and of the same degree.—These equations can be solved by substituting y = mx.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various

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