永 久 磁 石(えいきゅうじしゃく)

えいきゅうじしゃく

noun

permanent magnet

1. permanent magnet

A magnet that retains its magnetism without an external electric current. Made from materials such as ferrite or neodymium, used in motors, speakers, sensors, and many everyday devices.

冷蔵庫(れいぞうこ)のドアには永久磁石(えいきゅうじしゃく)が使(つか)われている。

Permanent magnets are used in refrigerator doors.

ネオジム永久磁石(えいきゅうじしゃく)は非常(ひじょう)に強力(きょうりょく)だ。

Neodymium permanent magnets are extremely powerful.

電気(でんき)モーターには永久磁石(えいきゅうじしゃく)が組(く)み込(こ)まれており、効率(こうりつ)よく回転(かいてん)エネルギーを生(う)み出(だ)す。

Permanent magnets are built into electric motors to efficiently generate rotational energy.

A compound of 永久(えいきゅう) (permanent, eternal) and 磁石(じしゃく) (magnet). Contrasts with 電磁石(でんじしゃく) (electromagnet), which requires electric current to generate a magnetic field.

Japan is a major producer of high-performance permanent magnets, particularly neodymium magnets, which are essential components in electric vehicles, wind turbines, and electronics.

Common collocations

永久磁石(えいきゅうじしゃく)モーター: permanent magnet motor
永久磁石(えいきゅうじしゃく)の磁力(じりょく): magnetic force of a permanent magnet
永久磁石(えいきゅうじしゃく)を使用(しよう)する: to use a permanent magnet
高性能(こうせいのう)永久磁石(えいきゅうじしゃく): high-performance permanent magnet

Similar words

磁石(じしゃく): magnet — the general term
電磁石(でんじしゃく): electromagnet — a magnet powered by electric current
磁力(じりょく): magnetic force — the force produced by a magnet

Related Words

Compare: 電磁石(でんじしゃく) (electromagnet)

Compare: 磁力(じりょく) (magnetic force)

general

Added 2026.4.23 22:29 · Revised 2026.9.2 13:02

25000/25187_eikyuujishaku