Meanings
nounposigrade (plural posigrades)
plural posigrades
- spacecraftaerospaceA small rocket that gives additional forward thrust.
adjectiveposigrade (comparative more posigrade, superlative most posigrade)
comparative more posigrade · superlative most posigrade
Synonyms & antonyms
adjectiveSynonym of prograde.
Similar
Origin
From posi- + -grade (“direction”).
Full word history & related roots →Cite this entry
APA
posigrade. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/posigrade
MLA
“posigrade.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/posigrade. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “posigrade,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/posigrade.
Source: posigrade on Wiktionary, CC BY-SA 4.0.