ˌspīrəˈlīnə noun
( -s )
Etymology: New Latin, from spirula small coil + -ina -ina (II) — more at spirulate
: a microscopic filamentous aquatic photosynthetic bacterium or blue-green alga (genus Spirulina and especially S. platensis syn. Arthrospira platensis ) that is sometimes cultivated for use as a dietary supplement