any of the blue-green algae of the genus Spirulina, sometimes added to food for its nutrient value.
any filamentous cyanobacterium of the genus Spirulina: processed as a valuable source of proteins and other nutrients
spiruroid spi·ru·roid (spī’rə-roid’) n. A member of the superfamily Spiruroidea. spi’ru·oid’ adj.
Spiruroidea Spi·ru·roi·de·a (spī’rə-roi’dē-ə) n. A superfamily of arthropod-borne, frequently pathogenic nematode parasites of the alimentary tract, respiratory system, or orbital, nasal, or oral cavities of vertebrates.
adjective 1. having the form of a spire, slender shoot, or tapering pointed body; tapering up to a point like a spire. 2. abounding in spires or steeples. adjective 1. spiral; coiled; coiling; helical. adjective 1. (poetic) of spiral form; helical
adjective, Meteorology. 1. (of a cloud) dense enough to obscure the sun.