mr

Abbreviation of Mister.

[...] Patrick lord Ruthven, Sir John Maxwell of Teregles, knight, William Maitland of Lethington younger, John Wiseheart of Pittarrow, and Mr Henry Balnaves of Hallhill, in name and behalf a noble and mighty prince James, duke of Chatelherault, second person of the realm of Scotland, and the remanent lords of his part, joined with him in this cause [...]

In recent months Mr Balaji had publicly spoken out against artificial intelligence company OpenAI's practices, which has been fighting a number of lawsuits relating to its data-gathering practices.

Abbreviation of March.

Initialism of Midland Railway.

Clipping of MRI (“magnetic resonance image/imager/imaging”).

2007 March 30, Elizabeth Mossis, M.D. (guest),“Breast Cancer Screening Guidelines”, Talk of the Nation: Science Friday, Ira Flatow (host), National Public Radio

Initialism of modified release.

Controlled release (CR), modified release (MR), orally disintegrating tablets (ODT), and other innovative dosage forms are still of interest to both pharmaceutical producers and suppliers.

Initialism of mitral regurgitation.

Initialism of mineralocorticoid receptor.

Initialism of mandatory release.