generated at
2/19/2025, 4:25:54 PM
catalyst
source:
Definition of catalyst - Chemistry Dictionary
noun
a
substance
that
increases
the
rate
of a
chemical
reaction
without itself undergoing any permanent
chemical
change.
〘化〙 触媒
a
person
or
thing
that
precipitate
s an
event
:
«…の» 変化を促すもの［人］, 要因, きっかけ «for»
e.g.
the governor's speech acted as a catalyst for debate.
ORIGIN
early
20th century
: from
catalysis
, on the pattern of analyst.
