1.
outer skin; rind; peel; husk
the outermost layer or covering of a fruit, vegetable, seed, or other natural object
バナナの外皮をむく。
To peel the skin of a banana.
この果物は外皮が硬いので、ナイフが必要だ。
This fruit has a hard outer skin, so you need a knife.
玉ねぎの外皮を取り除いてから調理する。
Remove the outer skin of the onion before cooking.
2.
outer covering; exterior casing; shell
the outer protective layer of a structure, building, or manufactured product
建物の外皮の断熱性が重要だ。
The insulation of a building's exterior envelope is important.
餃子の外皮がパリッとしている。
The dumpling wrapper is crispy.
住宅の外皮性能を高めることで、冷暖房の効率が大幅に改善される。
By improving the building envelope performance of a house, heating and cooling efficiency improves significantly.
Composed of 外 (outer; outside) + 皮 (skin; rind). Covers both natural coverings (fruit peels, seed husks) and man-made ones (building exteriors, food wrappers). In architecture and energy efficiency, 外皮 is a technical term for a building's thermal envelope.
COMMON COLLOCATIONS:
- 外皮をむく: to peel the outer skin
- 外皮を取り除く: to remove the outer covering
- 建物の外皮: building envelope
- 外皮性能: envelope performance (thermal efficiency)
SIMILAR WORDS:
- 皮: skin; peel — the everyday word for skin or peel
- 表皮: epidermis; surface skin — specifically the outermost layer of skin (medical/botanical)
- 殻: shell; husk — for hard outer coverings like eggs, nuts, shellfish