bra

名词 n.
中文释义
发音 brä

英文释义

名词 n.
  1. An item of clothing, usually underwear worn to support the breasts.
    — Mary felt annoyed at the girl; just because bras had become passé, did a girl with so pronounced a bosom have to cater to fashion? In this case practicality dictated a bra, and Mary stood at the desk feeling herself flushing with disapproval.
  2. One of the two vectors in the standard notation for describing quantum states in quantum mechanics, the row vector; the other (column) vector being its complex conjugate, the ket.
  3. Alternative form of bro; friend, mate alt-of,alternative,slang
    — Take it easy, bra!

词形变化

bras plural brassiere alternative,dated brassière alternative,dated bras plural brassiere alternative,dated brassière alternative,dated bras plural brassiere alternative,dated brassière alternative,dated

词汇关系

反义词
ket

词源

词源 1
Clipping of brassiere, borrowed from French brassière, from Old French braciere (originally a lining inside armor to protect the arm, but later a garment), from Old French brace (“arm”), from Latin bracchia, plural of Latin bracchium (“forearm”), from Ancient Greek βραχίων (brakhíōn, “forearm”), from Proto-Hellenic *brəkʰús (“short”) (because the forearm is shorter than the upper arm), inherited from Proto-Indo-European *mréǵʰus.
词源 2
From bracket, referring to the notation introduced in 1939 by Paul Dirac.
词源 3
Representing a different pronunciation of bro (“brother”).
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