词根词缀：gno-, gnos-, gnoto-, -gnostic, -gnosia, -gnomic, -gnomonic, -gnomical, -gnomy, -gnosia, -gnostic, -gnosis

【来源及含义】Greek: know, learn, discern

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units meaning "know, knowledge; learn, learning": cogni-; discip-; histor-; intellect-; learn, know; math-; sap-; sci-; sopho-.

【同源单词】abarognosis, acognosia, ad ignorantiam, agnogenic, agnoiology, agnosia

词根词缀：sero-, ser-, seri-

【来源及含义】Latin: serum, whey; watery substance; serum, in connection with serum

【相关描述】Used primarily in the extended sense of "clear animal fluid".

【相关词根词缀】Serum, whey words: oro-, orrho- unit.

【同源单词】autoserotherapy, chemoserotherapy, mucoserous, seroconversion, seroculture, serodiagnosis