halfwidth

About 0.03 uses per million words.

Meaning

1. adjective Of a text character, occupying the space of half of a fullwidth character, or one "normal" text column.
2. noun The width of a spectroscopic peak at half its height.

Similar words

half-width fullwidth flush left and right monospace forced justified double-spaced flush left flush right type-high justified

Often followed by

of is and at option for in value was