5H (English, noun)
expansion: 5H (usually uncountable, plural 5Hs)
Senses:
glosses: A grade of pencil with lead that makes lighter marks than a pencil grade 4H but darker marks than a pencil of grade 6H; a pencil with very hard lead.
tags: British
English
uncountable
usually
glosses: A pencil of the grade 5H.
tags: uncountable
usually
Forms:
form: 5Hs
tags: plural