spirogyra

[ spahy-ruh-jahy-ruh ]

/ ˌspaɪ rəˈdʒaɪ rə /

noun Botany.

a widely distributed filamentous freshwater green alga of the genus Spirogyra.

Origin of spirogyra

1895–1900; <New Latin, equivalent to spiro-spiro-² + -gyra, alteration of Greek gŷros circle or gȳrós round

Words nearby spirogyra

spirochete, spirochetemia, spirochetosis, spirogram, spirograph, spirogyra, spiroid, spirometer, spironolactone, spiroplasma, spirt

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for spirogyra

Each thread is a long tube, branching sometimes, but not divided into cells as in Spirogyra or Cladophora.
Elements of Structural and Systematic Botany|Douglas Houghton Campbell
Lindsay describes experiments carried on in a reservoir infested with Spirogyra.
Inorganic Plant Poisons and Stimulants|Winifred E. Brenchley
The number of these bands varies much in different species of Spirogyra, but is commonly two or three.
Elements of Structural and Systematic Botany|Douglas Houghton Campbell

British Dictionary definitions for spirogyra

spirogyra

/ (ˌspaɪrəˈdʒaɪərə) /

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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for spirogyra

spirogyra

[ spī′rə-jī′rə ]

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.

单词	spirogyra
释义	spirogyra [ spahy-ruh-jahy-ruh ] / ˌspaɪ rəˈdʒaɪ rə / noun Botany. a widely distributed filamentous freshwater green alga of the genus Spirogyra. Origin of spirogyra 1895–1900; <New Latin, equivalent to spiro-spiro-² + -gyra, alteration of Greek gŷros circle or gȳrós round Words nearby spirogyra spirochete, spirochetemia, spirochetosis, spirogram, spirograph, spirogyra, spiroid, spirometer, spironolactone, spiroplasma, spirt Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for spirogyra Each thread is a long tube, branching sometimes, but not divided into cells as in Spirogyra or Cladophora. Elements of Structural and Systematic Botany\|Douglas Houghton Campbell Lindsay describes experiments carried on in a reservoir infested with Spirogyra. Inorganic Plant Poisons and Stimulants\|Winifred E. Brenchley The number of these bands varies much in different species of Spirogyra, but is commonly two or three. Elements of Structural and Systematic Botany\|Douglas Houghton Campbell British Dictionary definitions for spirogyra spirogyra / (ˌspaɪrəˈdʒaɪərə) / 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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for spirogyra spirogyra [ spī′rə-jī′rə ] 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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