ˈsärsənə, -rkənə noun
Etymology: New Latin, from Latin, bundle; akin to Latin sarcire to patch, mend — more at exorcise
1. capitalized : a genus of bacteria (family Micrococcaceae) that are mostly harmless saprophytes but include a few serious brewery pests and that have cells which under favorable conditions divide in three directions into cubical masses
2. plural sarcinas or sarci·nae -səˌnē, -kəˌnī : any bacterium of the genus Sarcina