Akademik
bra
noun
/brɑː/
a)
a
brassiere
Whappening bra?
b)
One of the two vectors in the standard
notation
for describing quantum states in
quantum mechanics
,
the
other being the
ket
.
Take it easy, bra!
Ant
:
ket
See Also:
bra-ket notation
Wikipedia foundation
.