词根词缀：cocco-, cocc-, -coccus, -cocci, -coccal, -cocca

【来源及含义】Greek: bacteria; literally, a "berry, kernel"

【同源单词】coccal, cocci, coccid, coccidiosis, coccidosis, cocciferous

词根词缀：strepto-, strepsi-

【来源及含义】Greek: a twisting, to twist; easily bent or twisted, like a chain

【同源单词】streptobacilli, streptococcal, streptococci, streptococcicide, Streptococcus, streptodermatitis