marimo means A rare form of the filamentous green alga Aegagropila linnaei, resembling large green velvety balls. Lexicurio rates it Sui generis — a strength score of 85 out of 100.
Why “marimo” is a great word
MARIMO — [Noun] A rare, spherical growth form of the filamentous green alga *Aegagropila linnaei*, forming velvety green balls in cold freshwater lakes. From Japanese 毬藻 (marimo), from 毬 (mari, "ball") + 藻 (mo, "algae, seaweed"). Coined in 1898 by the Japanese botanist Tatsuhiko Kawakami. Unlike "algae" (a vast and formless taxonomic category) or the pet-trade misnomer "moss ball" (which misidentifies its kingdom), a marimo is a singular, achieved morphology. It is a submerged emerald planet turning in a cold current, a felted sphere smoothed by patient water, a living pomander of filaments knit into a permanent orb—a quiet argument against entropy, proof that persistence can curve back upon itself into a perfect form.
noun
- A rare form of the filamentous green alga Aegagropila linnaei, resembling large green velvety balls.