固体(こたい)

こたい
noun
solid; solid body
academic
See also: 個体(こたい) (individual (organism))
1. solid; solid body; solid state
One of the three basic states of matter, in which a substance maintains a fixed shape and volume. Contrasts with liquid and gas.
氷(こおり)は水(みず)の固体(こたい)だ。
Ice is the solid form of water.
物質(ぶっしつ)の状態(じょうたい)は固体(こたい)、液体(えきたい)、気体(きたい)の3つに分(わ)けられる。
The states of matter are divided into three: solid, liquid, and gas.
温度(おんど)が下(さ)がると、液体(えきたい)は固体(こたい)に変(か)わる。この変化(へんか)を凝固(ぎょうこ)という。
When the temperature drops, a liquid changes into a solid. This change is called solidification.

Usage

固体(こたい) is a scientific term used in physics, chemistry, and everyday language when discussing states of matter.

Related words

Similar words

  • 個体(こたい) (same reading, different kanji) means an individual organism — do not confuse

Common collocations

Related Words

Related: 液体(えきたい) (liquid)
Related: 気体(きたい) (gas)
general
Added 2026.3.4 13:34 · Revised 2026.9.2 13:01
14500/14852_kotai