a loose garment, typically sleeveless and reaching to the wearer's knees, as worn in ancient Greece and Rome (古希腊罗马人所穿,长达膝盖的)无袖宽松外衣 ■a loose, thigh-length garment, worn typically by women over a skirt or trousers (尤指穿于裙子或裤子外,长达大腿的)女宽松外衣 ■a gymslip 吉姆衫,体操衫
a close-fitting short coat as part of a uniform, especially a police or military uniform (尤指警察、军人的)紧身短上衣
(Biology & Anatomy)an integument or membrane enclosing or lining an organ or part (生,剖)层膜,被膜,被囊,原套 ■(Botany)any of the concentric layers of a plant bulb, e.g. an onion (植)膜被;鳞茎皮 ■(Zoology)the rubbery outer coat of a sea squirt (动)(海鞘)的被囊
语源
Old English, from Old French tunique or Latin tunica