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单词 protoplast
释义

protoplast

noun

pro·​to·​plast ˈprō-tə-ˌplast How to pronounce protoplast (audio)
1
: one that is formed first : prototype
2
: a plant cell that has had its cell wall removed
also : the nucleus, cytoplasm, and plasma membrane of a cell as distinguished from inert walls and inclusions

Example Sentences

Recent Examples on the Web Moisturize with Shiseido Waso Clear Mega-Hydrating Cream, made with whole carrot protoplasts (what's left of the cell when its wall dissolves). Maya Mcdowell, Seventeen, 21 May 2019

Word History

Etymology

Middle French protoplaste, from Late Latin protoplastus first human, from Greek prōtoplastos first formed, from prōt- prot- + plastos formed, from plassein to mold — more at plaster

First Known Use

1532, in the meaning defined at sense 1

Medical Definition

protoplast

noun

pro·​to·​plast ˈprōt-ə-ˌplast How to pronounce protoplast (audio)
: the nucleus, cytoplasm, and plasma membrane of a cell as distinguished from inert walls and inclusions
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更新时间:2025/2/3 12:43:06