MAR is an acronym with multiple meanings depending on the context, such as March (the month), Medication Administration Record in healthcare, or Memory Address Register in computing.

Common Meanings

• March : Abbreviation for the third month of the year in the Gregorian calendar.

• Medication Administration Record (MAR) : A legal document or digital record tracking drugs given to patients in healthcare settings, often integrated into electronic health records.

• Memory Address Register : A CPU hardware component that holds memory addresses during data processing.

Other Notable Uses

• Mid-Atlantic Ridge, a major oceanic ridge system.

• Morocco's ISO country code.

• Matrix Attachment Region, DNA sequences in eukaryotic chromosomes.