Last Updated：2025/11/19
A measure for something; a means of deriving a quantitative measurement or approximation for otherwise qualitative phenomena (especially used in engineering).
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Source Word
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IPA(Pronunciation)
Noun
abbreviation
alt-of
Japanese Meaning
あるものを測るための尺度・基準 / 定量的な測定値や定量化を行うための指標 / （特に工学分野で）質的な現象を数量化するための計量的手法
Sense（1）
Sense（2）
(mathematics)
A
function
for
the
measurement
of
the
"distance"
between
two
points
in
some
metric
space:
it
is
a
real-valued
function
d(x,y)
between
points
x
and
y
satisfying
the
following
properties:
(1)
"non-negativity":
d(x,y)>0,
(2)
"identity
of
indiscernibles":
d(x,y)=0
mbox
iffx=y,
(3)
"symmetry":
d(x,y)=d(y,x),
and
(4)
"triangle
inequality":
d(x,y)<d(x,z)+d(z,y).
Sense（3）
Sense（4）
（ plural ）
