Nucleus -

Japanese: 核 - かく

〘noun〙① A spherical body found in the center of a living cell. It is surrounded by a nuclear membrane and contains nuclear fluid that fills the interior and contains one or several kernels and a nuclear filament. It multiplies by nuclear division and takes various forms during division. It is the center of the cell's vital functions and also plays a key role in heredity. [Medical Words Ruishu (1872)]② The hard part that protects the seeds of a fruit. The hardened endocarp of a fruit. Seeds such as plum and peach. Seed. [Iroha Jiruisho (1177-81)]③ The center of something. A vital point. The core. ※Black Eyes and Brown Eyes (1914)〈Tokutomi Roka〉5 "Even if you hide the kernel of truth, half the story is told anyway ."④ A small pellet placed inside the body of a mother oyster in pearl cultivation. Shells are used. ⑤ Atomic nucleus. Also, nuclear weapon. "Nuclear fusion" "Nuclear ship" ⑥ The core of the Earth. The deep part of the Earth, more than 2,900 kilometers deep. It is divided into the outer core and the inner core.

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙① 生物の細胞の中心にある球形の小体。核膜に包まれ、内部を満たす核液中には染色糸と一個または数個の仁がある。核分裂によってふえ、分裂時には種々の形態をとる。細胞の生活機能の中枢であるとともに遺伝のにない手でもある。〔医語類聚（1872）〕② 果実の種子を保護している堅い部分。果実の内果皮が硬化したもの。ウメ、モモなどの種子の類。さね。たね。〔色葉字類抄（1177‐81）〕③ 物事の中心。急所。核心。※黒い眼と茶色の目（1914）〈徳富蘆花〉五「事実の核(カク)を蔵(かく)しても、兎に角半分の話は済んだ」④ 真珠の養殖で、母貝の体の中に入れる小球。貝殻が用いられる。⑤ 原子核。また、核兵器。「核融合」「核搭載艦」⑥ 地球の中心核。地球内部の約二九〇〇キロメートル以上の深い部分。外核と内核に分けられる。

出典　精選版日本国語大辞典精選版日本国語大辞典について　情報

<<: Case - kaku (English spelling)

>>: Corner - Corner