MBD may refer to:

• Minimal brain dysfunction or minimal brain damage, obsolete terms for attention-deficit hyperactivity disorder
• Metabolic Bone Disease
• "Thousand barrels per day," a measurement of production or consumption of crude oil
• Motherboard, a computer component.
• Murder by Death (band), an indie rock band.
• Man-Bites-Dog story, a slang term used in journalism
• Mordechai ben David, a Jewish singer
• MBD Business Development, a UK company trading under the name MBD (Midland Business Development)
• Medieval Battle Day, a citywide fighting tournament using wooden weapons; held in a currently unknown city.

MBd may refer to: Attention-Deficit/Hyperactivity Disorder (ADHD) previously known as Attention Deficit Disorder (ADD), is generally considered to be a developmental disorder, largely neurological in nature, affecting about 5% of the worlds population. ... Metabolic Bone Disease is an umbrella term referring to the weakening of bones due to a deficiency of certain minerals, specifically calcium, phospherous, and vitamin d. ... Barrels per day (abbreviated bpd or b/d) is a measurement used to describe the amount of crude oil produced or consumed by an entity in one day. ... Pumpjack pumping an oil well near Sarnia, Ontario Petroleum (from Greek petra – rock and elaion – oil or Latin oleum – oil ) or crude oil is a thick, dark brown or greenish liquid. ... A motherboard is the central or primary circuit board making up a complex electronic system, such as a modern computer. ... The NASA Columbia Supercomputer. ... Murder by Death (formerly known as Little Joe Gould) is a four-piece rock band from Bloomington, Indiana. ... Indie rock is a subgenre of rock music often used to refer to bands that are on small independent record labels or that arent on labels at all. ... The phrase Man bites dog and the related phrase Dog bites man are used to describe a phenomenon in journalism, in which an unusual, infrequent event is more likely to be reported as news than an ordinary, everyday occurrence. ... This article does not cite any references or sources. ... Mordechai Werdyger, generally known as Mordechai ben David (lit. ...

• Megabaud, equal to one million baud, symbol rate in telecommunications

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