3H
noun2
Usually A pencil of grade 3H.
3
Usually tritium. In this case, the "3" should be superscripted: ³H.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun — 3 senses
Usually A pencil of grade 3H.
Usually tritium. In this case, the "3" should be superscripted: ³H.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.