Last Updated
：2025/11/20
quinine
IPA(Pronunciation)
Noun
countable
uncountable
(pharmacology)
An
alkaloid
with
the
chemical
formula
C₂₀H₂₄N₂O₂
originally
derived
from
cinchona
bark
(from
plants
of
the
genus
Cinchona)
used
to
treat
malaria
and
as
an
ingredient
of
tonic
water,
which
presents
as
a
bitter
colourless
powder;
also,
a
drug
containing
quinine
or
a
chemical
compound
derived
from
it.
Japanese Meaning
（薬理学）キニーネ（キナ樹皮由来のアルカロイド）：化学式C₂₀H₂₄N₂O₂。マラリア治療薬として、またトニックウォーターの成分として利用される、苦味が特徴の無色粉末。なお、『キニーネ』はこの化合物やこれに基づく薬剤を指す。
Sense（1）
(pharmacology)
An
alkaloid
with
the
chemical
formula
C₂₀H₂₄N₂O₂
originally
derived
from
cinchona
bark
(from
plants
of
the
genus
Cinchona)
used
to
treat
malaria
and
as
an
ingredient
of
tonic
water,
which
presents
as
a
bitter
colourless
powder;
also,
a
drug
containing
quinine
or
a
chemical
compound
derived
from
it.
（ plural ）
Quizzes for review
(pharmacology) An alkaloid with the chemical formula C₂₀H₂₄N₂O₂ originally derived from cinchona bark (from plants of the genus Cinchona) used to treat malaria and as an ingredient of tonic water, which presents as a bitter colourless powder; also, a drug containing quinine or a chemical compound derived from it.
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See correct answer
quinine
The researcher noted that quinine, a bitter alkaloid originally extracted from cinchona bark, played a crucial role in the historical treatment of malaria.
See correct answer
The researcher noted that quinine, a bitter alkaloid originally extracted from cinchona bark, played a crucial role in the historical treatment of malaria.
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