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| the offspring of a zebra and a donkey. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| spirillum (spaɪˈrɪləm) | |
| —n , pl -la | |
| 1. | coccus Compare bacillus any bacterium having a curved or spirally twisted rodlike body |
| 2. | any bacterium of the genus Spirillum, such as S. minus, which causes ratbite fever |
| [C19: from New Latin, literally: a little coil, from spīra a coil] | |
| spi'rillar | |
| —adj | |
spirillum spi·ril·lum (spī-rĭl'əm)
n. pl. spi·ril·la (-rĭl'ə)
A member of the genus Spirillum.
Any of various other spiral-shaped microorganisms.
Spirillum n.
A genus of large, aerobic, gram-negative bacteria having an elongated spiral form and a tuft of flagella.
| spirillum (spī-rĭl'əm) Pronunciation Key
Plural spirilla Any of various bacteria that are shaped like a spiral, such as the spirochete Treponema pallidum, which causes syphilis. |