nguyên sinh

== Vietnamese == === Etymology === Sino-Vietnamese word from 原生, composed of 原 (“origin; foundation”) and 生 (“life”). === Pronunciation === (Hà Nội) IPA(key): [ŋwiən˧˧ sïŋ˧˧] (Huế) IPA(key): [ŋwiəŋ˧˧ ʂɨn˧˧] ~ [ŋwiəŋ˧˧ sɨn˧˧] (Saigon) IPA(key): [ŋwiəŋ˧˧ ʂɨn˧˧] ~ [ŋwiəŋ˧˧ sɨn˧˧] === Adjective === nguyên sinh primordial; primeval; uncontaminated and undeveloped (biology) protoplasmic; protozoic; eukaryotic (geology) Proterozoic