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
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 CampbellLindsay describes experiments carried on in a reservoir infested with Spirogyra.
Inorganic Plant Poisons and Stimulants |Winifred E. BrenchleyThe 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
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.