Jump To:

• mm
  mm

  millimeter; millimeters.
• mM
  mM

  millimole; millimoles.
• mm.
  mm.

  abbreviation

  thousands.
• MM.
  MM.

  abbreviation

  Messieurs.
• M.M.
  M.M.

  abbreviation

  Master Mason.
• MM
  MM

  abbreviation

  Military Medal

mm

¹ American  

1. millimeter; millimeters.

---

mM ² American  

1. millimole; millimoles.

---

mm. ³ American  

abbreviation

1. thousands.

---

mm. ⁴ American  

abbreviation

1. Music. measures.

2. millimeter; millimeters.

---

MM. ⁵ American  

abbreviation

1. Messieurs.

---

M.M. ⁶ American  

abbreviation

1. Master Mason.

2. Master Mechanic.

3. Master of Music.

---

mm ¹ British  

symbol

1. millimetre

---

abbreviation

1. mutatis mutandis

mm ² British  

abbreviation

1. Myanmar

---

MM ³ British  

abbreviation

1. Military Medal

2. the French equivalent of Messrs

---

mm Scientific  

1. Abbreviation of millimeter

---

Etymology

Origin of mm.

From the Latin word millia

---

Example Sentences

See Examples For:

mm mM mm. MM. M.M. MM

Thanks to precise satellite measurements, scientists have determined that global sea levels have increased by an average of 3.64 mm per year since 1999.

From Science Daily ● Oct. 12, 2026

Gym rats can check their body composition of fat and muscle, people with heart issues can get their heartbeat captured, and mole owners can get their moles mapped to 0.1 mm.

From Slate ● Oct. 8, 2026

On May 6, the USS Abraham Lincoln aircraft carrier disabled an Iranian-flagged oil tanker, Hasna, by firing several rounds from a 20 mm cannon gun, according to Centcom.

From The Wall Street Journal ● Oct. 6, 2026

In the southern part of England, July was the driest month ever recorded, dating back to 1836, with just 1.9 mm of rainfall, or three percent of the average figure, the Met Office said.

From Barron's ● Aug. 3, 2026

Your pencil—mechanical, size .7 mm graphite only—glides across the paper.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

In addition, yeast cells were treated with 100 mM sodium perchlorate, either on its own or combined with shock wave exposure.

From Science Daily ● Feb. 8, 2026

Plants from which these data were taken were grown in 10 mM NaCl solutions.

From Textbooks ● Jun. 9, 2022

DNA was purified by adding 30 μl of 20 mM EDTA, 5 μl of 3 M sodium acetate and 137 μl ice cold ethanol.

From Nature ● Sep. 19, 2017

This starting structure was placed into a cubic box of water containing 100 mM NaCl.

From Nature ● Apr. 4, 2014

“Just then, Death came up to him and tapped him on the shoulder. ‘Excuse me,’ he mM, “but I have come for you.’

From "The Once and Future King" by T. H. White

These patches are also gigantic — the smallest size offered is 9 by 13 mm., which is bigger than the original’s largest size.

From Slate ● Feb. 26, 2019

Scale bar, 1 mm. b, Representative scanning electron microscopy image showing measurements of inner and outer seed coat layers.

From Nature ● Feb. 7, 2017

There should be no place on earth not covered by 8 mm. movies, no place without the buzzing of our 8 mm. cameras!

From The New Yorker ● Apr. 21, 2016

The daily total is the equivalent of about four rolls of 35 mm. film, less than an hour's supply for a fast-working professional.

From Time Magazine Archive

A female taken on June 21 in a mist net on the Sierra de Tamaulipas carried an embryo that was 29 mm. in crown-rump length.

From The Recent Mammals of Tamaulipas, Mexico by Ticul Alvarez

MM. les Deputes were presented last week with the 1932 budget which, to the ingenuous eye, balanced.

From Time Magazine Archive

Soon epithets rang and adjectives cooed, as MM. les Deputés expounded their grand theme: The Sanctity of Motherhood.

From Time Magazine Archive

But MM. les Deputés quickly came to their senses, supported the Cabinet, 351 to 110.

From Time Magazine Archive

MM. les Deputies proceeded to increase the deficit by 846,000,000 francs and sent the budget back to the Senators again.

From Time Magazine Archive

There is no need to argue against this, the immortal "Que MM. les assassins," etc., being, though in fact the weakest of a thousand refutations, sufficient, once for all, to explode it.

From A History of the French Novel, Vol. 2 To the Close of the 19th Century by George Saintsbury

Included are instructions for calling the central office, along with one- and two-digit numbers for USC’s first president, M.M.

From Los Angeles Times ● Oct. 7, 2025

I got on the phone with the magazine’s “Editor Grande Supreme” M.M.

From Slate ● Sep. 8, 2023

That had stiff competition from the pure frenzied precision that was the live performance of "Naatu Naatu," outdone only by its composer M.M.

From Salon ● Mar. 13, 2023

But the musical highlight of the night was undoubtedly the snatch of the Carpenters’ “Top of the World” sung by the composer M.M.

From New York Times ● Mar. 12, 2023

“Isn’t that right? I thought it was better to do it so, because Meg’s initials are M.M., and I don’t want anyone to use these but Marmee,” said Beth, looking troubled.

From "Little Women" by Louisa May Alcott

Miranda-Martin painted it with Benjamin Moore’s Navajo, a flat white, as a backdrop to the softer hues of the furniture he designed at his furniture and lighting company, Studio MM.

From Los Angeles Times ● Jun. 26, 2026

MM: I want to bring up the value of women working together.

From Los Angeles Times ● Sep. 5, 2024

Although previously tested in MM, venetoclax, which blocks the function of a protein called BCL-2, was only found to be effective for a small proportion of patients.

From Science Daily ● Mar. 25, 2024

After BBC Panorama's investigation, Boohoo said it had "responsibly disengaged" from MM Leicester Clothing Ltd "whilst honouring any outstanding orders".

From BBC ● Jan. 10, 2024

You have imposed upon me, Monsieur, the unpleasant task of informing you that MM.

From Beaumarchais and the War of American Independence by Elizabeth S. Kite

Random Word

Spin the wheel and learn a new word!

---