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spirillum |
Noun
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any flagellated aerobic bacteria having a spirally twisted rodlike form |
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spirillum |
Noun
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spirally twisted elongate rodlike bacteria usually living in stagnant water |
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spirilla |
Noun
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any flagellated aerobic bacteria having a spirally twisted rodlike form |
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sulphur bacteria |
Noun
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any bacterium of the genus Thiobacillus |
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sulfur bacteria |
Noun
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any bacterium of the genus Thiobacillus |
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slow virus |
Noun
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a virus that remains dormant in the body for a long time before symptoms appear |
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smallpox virus |
Noun
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the virus that causes smallpox in humans |
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sarcodinian |
Noun
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protozoa that move and capture food by forming pseudopods |
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sarcodine |
Noun
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protozoa that move and capture food by forming pseudopods |
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staphylococcus |
Noun
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spherical Gram-positive parasitic bacteria that tend to form irregular colonies |
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staphylococci |
Noun
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spherical Gram-positive parasitic bacteria that tend to form irregular colonies |
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staph |
Noun
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spherical Gram-positive parasitic bacteria that tend to form irregular colonies |
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streptococcus |
Noun
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spherical Gram-positive bacteria occurring in pairs or chains |
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streptococci |
Noun
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spherical Gram-positive bacteria occurring in pairs or chains |
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spirochete |
Noun
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parasitic or free-living bacteria |
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spirochaete |
Noun
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parasitic or free-living bacteria |
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sea tangle |
Noun
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any of various kelps especially of the genus Laminaria |
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sea tang |
Noun
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any of various coarse seaweeds |
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streptomyces |
Noun
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aerobic bacteria (some of which produce the antibiotic streptomycin) |
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stentor |
Noun
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any of several trumpet-shaped ciliate protozoans that are members of the genus Stentor |
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stentor |
Noun
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a speaker with an unusually loud voice |
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streptobacillus |
Noun
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any of various rod-shaped Gram-negative bacteria |
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seaweed |
Noun
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plant growing in the sea, especially marine algae |
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salmonella |
Noun
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rod-shaped Gram-negative enterobacteria |
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seagrass |
Noun
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any of various seaweeds that grow underwater in shallow beds |
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sea wrack |
Noun
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growth of marine vegetation especially of the large forms such as rockweeds and kelp |
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sea wrack |
Noun
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submerged marine plant with very long narrow leaves found in abundance along North Atlantic coasts |
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shigella |
Noun
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rod-shaped Gram-negative enterobacteria |
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shiga bacillus |
Noun
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a bacillus that causes dysentery |
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slime bacteria |
Noun
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bacteria that form colonies in self-produced slime |
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silversides |
Noun
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the common North American shiner |
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silversides |
Noun
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small fishes having a silver stripe along each side |
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sea-lettuce family |
Noun
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thin flat or tubular green algae |
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sea lettuce |
Noun
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seaweed with edible translucent crinkly green fronds |
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sarcosporidian |
Noun
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parasite of the muscles of vertebrates |
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sarcocystidean |
Noun
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parasite of the muscles of vertebrates |
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sarcocystieian |
Noun
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parasite of the muscles of vertebrates |
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spirogyra |
Noun
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freshwater algae consisting of minute filaments containing spiral chlorophyll bands |
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superorder Malacopterygii |
Noun
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an extensive group of teleost fishes having fins supported by flexible cartilaginous rays |
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soft-finned fish |
Noun
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any fish of the superorder Malacopterygii |
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stonewort |
Noun
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any of various submerged aquatic algae of the genus Chara having nodes with whorled filamentlike branches |
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serrated wrack |
Noun
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brown algae seaweed with serrated edges |
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sporozoan |
Noun
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parasitic spore-forming protozoan |
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sporozoite |
Noun
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one of the minute active bodies into which sporozoans divide in one stage of their life cycle |
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sea moss |
Noun
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any of various red algae having graceful rose to purple fronds (e.g. dulse or carrageen) |
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sea moss |
Noun
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sessile aquatic animal forming mossy colonies of small polyps each having a curved or circular ridge bearing tentacles |
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sargassum |
Noun
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brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea |
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sargasso |
Noun
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brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea |
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shiner |
Noun
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any of numerous small silvery North American cyprinid fishes especially of the genus Notropis |
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shiner |
Noun
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important food fish of the northern Atlantic and Mediterranean |