atomic group; radical (chemistry)
Tone colorsmāmámǎmàma
Meanings
1 sense · 3 examplesnoun
a group of different atoms that acts as a single unit in chemical reactions; radical
technicalIn chemistry, also referred to as a 'radical', though distinct from free radicals in some contexts. Often carries a charge when it exists as an ion.
Jiǎ甲
jī基
（
—
CH₃C
shìH
yī₃
）
zhǒng是
cháng一
jiàn种
de常
yuán见
zǐ的
tuán原
子
团
。
The methyl group (—CH₃) is a common atomic group.
Yuán原
zǐ子
tuán团
zài在
huà化
xué学
fǎn反
yìng应
zhōng中
tōng通
cháng常
bǎo保
chí持
bù不
biàn变
。
Atomic groups usually remain unchanged in chemical reactions.
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Qiǎng羟
jī基
（
—
OHO
héH
）
suō和
jī羧
COOH基
（
—
dōuC
shìO
zhòngO
yàoH
）
de都
yuán是
zǐ重
tuán要
的
原
子
团
。
The hydroxyl group (—OH) and the carboxyl group (—COOH) are both important atomic groups.