melanosperm

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noun

An alga of any kind that produces blackish spores, or seed dust. They were historically grouped together in Melanosperm

“The melanosperms included the rockweeds and all kinds of kelp.”

Scrabble 17
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Meanings

nounmelanosperm (plural melanosperms)

plural melanosperms

  1. archaicAn alga of any kind that produces blackish spores, or seed dust. They were historically grouped together in Melanosperm

    The melanosperms included the rockweeds and all kinds of kelp.

Origin

melano- + sperm (black seed)

Full word history & related roots →
Cite this entry
APA

melanosperm. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/melanosperm

MLA

“melanosperm.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/melanosperm. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “melanosperm,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/melanosperm.

Source: melanosperm on Wiktionary, CC BY-SA 4.0.