Square Millibar

㍊ means millibar: it compresses the Japanese spelling ミリバール into one square character cell. It belongs to legacy Japanese unit typography, and the full spelling is safer for data exchange.

Text symbol

Search it as: millibar symbol · mbar · mb · ミリバール · Japanese square unit · machine-dependent character
Shows up in: Anything that takes text · its shape is whatever your font draws

What ㍊ means

It means millibar, packed into one Japanese square character.

Japanese unit typography uses compact square characters to fit short unit spellings into a cell about as wide as a full Japanese character. The 1993 Unicode 1.1 list records ㍊ as ミリバール; that dates its computer encoding, not the symbol's invention.

It uses the same compact format as ㍉ and ㍍, other Japanese square-unit characters. Japan changed weather reports from millibars to hectopascals (hPa) on December 1, 1992; one millibar equals one hectopascal.

Technical and old-fashioned; it signals compact Japanese unit typography.

CI-NET LiteS guidance treats ㍊ as machine-dependent; ミリバール is the interchange fallback.