保ほ冷れい剤ざい

noun

ice pack; cold pack; thermal gel pack

A reusable gel pack used in coolers or lunch boxes to keep food cold. Often called an 'ice pack' in everyday English, though it doesn't contain ice.

• お弁べん当とうに保ほ冷れい剤ざいを入いれてください。

  Please put an ice pack in the lunch box.

• クーラーボックスに保ほ冷れい剤ざいを入いれておいた。

  I put some cold packs in the cooler.