Meanings
nounhowardite (plural howardites)
plural howardites
- geographyAn achondritic stony meteorite.
The recommended criterion is based on the amount of magnesian ortho‐pyroxenite (diogenite) component in the meteorite. Howardites contain more than 10% and polymict eucrites contain less than 10%.
1983, Jeremy S. Delaney et al., “The Nomenclature of Polymict Basaltic Achondrites”, in Meteoritics & Planetary Science, volume 18, number 2, →DOI
Origin
From Howard + -ite, after Edward Howard, a pioneer of meteoritics.
Full word history & related roots →Cite this entry
APA
howardite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/howardite
MLA
“howardite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/howardite. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “howardite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/howardite.
Source: howardite on Wiktionary, CC BY-SA 4.0.