氨基 (ān jī) — amino group (chemical functional group -NH₂) | TongTong Chinese Dictionary

Definition

noun

amino group (chemical functional group -NH₂)

Examples

氨基羧。
Ān jī suān shì hán yǒu ān jī hé suō jī de yǒu jī huà hé wù.
Amino acids are organic compounds containing an amino group and a carboxyl group.
。
Dàn bái zhì de jī běn jié gòu dān wèi shì ān jī suān.
The basic structural unit of protein is an amino acid.
氨基。
Zhè ge yǒu jī fēn zǐ hán yǒu liǎng gè ān jī.
This organic molecule contains two amino groups.

Origin

Compound word

构词法gòucífǎ

偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

氨ānammonia

氨, suggesting ammonia, and 基, suggesting a chemical group, together name the -NH₂ functional group.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

气安氨

Meaning part形符xíngfú

气气qìgas

Sound part声符shēngfú

安

安ān氨ān

Same sound today

氨 pairs 气 (gas) with 安, which gives the sound ān; the 气 part shows that it names a gas.

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

其土基

Meaning part形符xíngfú

土土tǔearth

Sound part声符shēngfú

其

其qí基jī

Same sound today

The lower 土 means earth, and the upper 其 gives the sound; together they form the idea of a foundation of earth.

Appears in

Physics & Chemistry

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