Strong, permanent magnets that are made from alloys of rare earth elements, are much stronger than ferrite or alnico magnets, and are extremely brittle.

plural of magnifying glass

(informal) A soft porn magazine featuring naked women.

A powerful magnet made of a combination of neodymium, iron, and boron: Nd₂Fe₁₄B.

Sexual attractiveness; charisma derived from non-intellectual characteristics. / (mesmerism) A magnetic fluid or ethereal medium said to reside in the bodies of animate beings.

plural of order of magnitude

A type of (usually) acrylic tape with a fine coating of magnetically sensitive material on one side, used for recording audio and other data.

plural of magic square

(astronomy) The magnitude of a star in terms of the total amount of radiation received at all wavelengths

(fantasy role-playing games) A unit of measure indicating the amount of magical energy or power available to a character in a role-playing game. Abbreviated MP.