| smooth colony | A bacterial colony with a glistening, rounded surface; this type of colony is usually associated with increased virulence with respect to that of rough colony's. (05 Mar 2000) |
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| spheroid colony | A colony of protozoa in which the individual cells are held together in a coherent spherical mass by a gelatinoid material. (05 Mar 2000) |
| daughter colony | A secondary colony growing on the surface of an older colony; it is smaller and may have characteristics different from those of the mother colony. (05 Mar 2000) |
| O colony | Growth of a nonmotile bacterium in discrete, compact colony's in contrast to a film of growth produced by some motile bacteria. Compare: H colony. Origin: Ger. Ohne Hauch, without breath (05 Mar 2000) |
| filamentous colony | In bacteriology, a colony composed of long, interwoven, irregularly disposed threads. (05 Mar 2000) |
| lenticular colony | A bacterial colony shaped like a lentil or a double-convex lens. (05 Mar 2000) |