A liquid state of matter (as opposed to solid or gas); substances with flow such as water or oil.
水は常温では液体の状態だ。
Water is in a liquid state at room temperature.
液体、気体、固体の三つの状態を学んだ。
I learned the three states: liquid, gas, and solid.
液体窒素は非常に低温の液体だ。
Liquid nitrogen is a very low-temperature liquid.