Meanings
adjectiveorthospermous (not comparable)
- not comparablebiologyHaving the seeds straight, as in the fruits of some umbelliferous plants.
But in regard to the differences both in the internal and external structure of the seeds, […] in the Umbelliferae these differences are of such apparent importance—the seeds being in some cases, according to Tausch, orthospermous in the exterior flowers and cœlospermous in the central flowers,—[…]
1859 November 24, Charles Darwin, “Laws of Variation”, in On the Origin of Species by Means of Natural Selection, […], London: John Murray, […], →OCLC, page 146
Origin
Ancient Greek
Full word history & related roots →Cite this entry
APA
orthospermous. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/orthospermous
MLA
“orthospermous.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/orthospermous. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “orthospermous,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/orthospermous.
Source: orthospermous on Wiktionary, CC BY-SA 4.0.