EXAMPLES | WORD ORIGIN noun . Botany a widely distributed filamentous freshwater green alga of the genus Spirogyra. Origin of spirogyra 1895–1900;
spiro- spiro- 2
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for spirogyra Historical Examples of spirogyra British Dictionary definitions for spirogyra noun any green freshwater multicellular alga of the genus Spirogyra, consisting of minute filaments containing spirally coiled chloroplasts Word Origin for spirogyra
C20: from New Latin, from
spiro- ² + Greek guros a circle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Any of a genus of filamentous freshwater green algae having cylindrically shaped cells with spiral-shaped bands of chloroplasts. Species of Spirogyra reproduce asexually by cell division and fragmentation and sexually by conjugation. They form green scum on ponds, floated by the oxygen produced by photosynthesis.
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