noun
steamer; steam cooker
A kitchen utensil or appliance used to steam food. Can refer to a standalone electric steamer, a bamboo steamer basket, or a steaming insert for a pot.
蒸し器で野菜を蒸すと、栄養が逃げにくい。
When you steam vegetables in a steamer, the nutrients are less likely to escape.
この蒸し器は電子レンジでも使えます。
This steamer can also be used in a microwave.
Compound of 蒸し (mushi, 'steaming', the continuative form of 蒸す musu 'to steam') + 器 (ki, 'vessel, container').