The thirteenth letter of the basic modern Latin alphabet. (noun)
: Messier number. Objects in Charles Messier's catalog of Nebulae and Star Clusters in 1774 are numbered, and the letter M (for Messier) is prepended to these numbers, as in M31 (the Andromeda Galaxy) or M13 (the globular cluster in Hercules). (noun)
IUPAC 1-letter abbreviation for methionine (noun)
The Roman numeral M (1,000) (noun)
The thirteenth letter of the English alphabet, called em and written in the Latin script. (noun)
The ordinal number thirteenth, derived from this letter of the English alphabet, called em and written in the Latin script. (noun)
nautical mile (initialism)
Michigan. Usage note: this designation is usually used only within Michigan. (initialism)
the number of minutes a player spent at the crease (initialism)
the number of maiden overs bowled (initialism)
Examples of word M
The cube ABCD-G is derived from the square ABCD by letting ABCD move one foot in a direction perpendicular to its two dimensions; its M lines and M² points describe respectively M squares and M² lines; accordingly ABCD-G contains M squares, M² lines, and M³ points.
The unit AB may be regarded as made up of an indefinitely large number M of points arranged continuously from A to B; the square ABCD then contains M×M = M² points; and the cube ABCD-G contains M×M X M = M³ points.
Memorable Ones: Sperm wriggling their way into an egg; a tapeworm being removed from an artery of a very fleshy arm; happy little M& M figures sending cartoon messages to a cartoon brain.
M@, Dean, Kim_in_TO, Dharma, Nigel Patel, Jen, M Yass are all friends of mine and wmtc fans, but are also honest, forthright people who would politely but clearly tell me if they thought I was out of line.
A scientific naturalist is in principle happy to say that if a mathematical theory M is scientifically superior but mathematically inferior to another mathematical theory M* then M should be preferred to M* (the next paragraph contains an example).