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spiro compound
spirochete
spirochetosis
spirograph
spirogyra
spirometer
spironolactone
spirt
spirulina
spiry
spit (1)
spit (2)
spit and polish
spit curl
spit up
spitball
spitchcock
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spirulina

spi·ru·li·na [ spìrrə lnə, sprə lnə ]


plural noun 
Definition:
 
nutritionally valuable microorganisms: cyanobacteria valued as a rich source of protein, containing vitamins, minerals, essential fatty acids, and antioxidants. Spirulina are grown in tanks and harvested to be made into nutritional supplements. Genus Spirulina.

[< modern Latin< Latin spirula "small spiral shell" < spira (see spire2)]
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