freezing point
US /ˈfriːzɪŋ pɔɪnt/
UK /ˈfriːzɪŋ pɔɪnt/

1.
凝固点
the temperature at which a liquid turns into a solid when cooled
:
•
The freezing point of water is 0 degrees Celsius.
水の凝固点は摂氏0度です。
•
Salt lowers the freezing point of water, which is why it's used on icy roads.
塩は水の凝固点を下げるため、凍結した道路で使われます。