A filamentous freshwater green alga containing spiral bands of chloroplasts.
- ‘The magnified parade of protozoas, amoeba proteus and paramecia aurelia, with spirogyras and volvox green algae, amazed the kids.’
- ‘The spirogyras send their contents through the conjugations tubes to the other one.’
- ‘It was a picture of spirogyra, a single cell organism, taken through a microscope.’
Modern Latin, from spiro- ‘spiral’ + Greek guros, gura ‘round’.
We take a look at several popular, though confusing, punctuation marks.