noun, plural spirulae
[spir-yuh-lee, -oo-lee] /ˈspɪr yəˌli, -ʊˌli/ (Show IPA)
any cephalopod of the genus Spirula, having a flat, spiral shell that is partly inside and partly outside the posterior part of the body.
a tropical cephalopod mollusc, Spirula peronii, having prominent eyes, short arms, and a small flattened spirally coiled internal shell: order Decapoda (cuttlefish and squids)
noun 1. any of the blue-green algae of the genus Spirulina, sometimes added to food for its nutrient value. noun 1. 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