gōu

勾股形

Word · Noun · AdjectiveTraditional句

hook; bent; ancient term for right-angled triangle

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Meanings

3 senses · 5 examples
1.

noun

hook (archaic meaning); bent object

archaic

An ancient meaning, now largely obsolete and replaced by 钩.

Gǔ古
wén文
zhōng中
 ，
 “
gōu句
 ”
yǒu有
shí时
zhǐ指
gōu钩
zi子
 。

In ancient texts, 'gōu' sometimes meant a hook.

2.

adjective

bent; curved

archaic

Obsolete. Found in classical texts.

Qí其
mù木
gōu句
 。

Its wood is bent.

3.

noun

right-angled triangle (in ancient Chinese mathematics/astronomy)

archaic

Specifically, the shorter leg of a right-angled triangle (the 'hook'), as opposed to 股 (the longer leg). Used in classical texts like《周髀算经》.

Gōu勾
gǔ股
xíng形
shì是
wǒ我
guó国
gǔ古
dài代
duì对
zhí直
jiǎo角
sān三
jiǎo角
xíng形
de的
chēng称
hu呼
 。

Gougu xing is what ancient China called a right-angled triangle.

Gōu勾
sān三
gǔ股
sì四
xián弦
wǔ五
 。

If the shorter leg is 3 and the longer leg is 4, the hypotenuse is 5.

Show 1 more example
Tā他
zài在
yán研
jiū究
gǔ古
dài代
de的
gōu勾
gǔ股
dìng定
lǐ理
 。

He is studying the ancient Gougu theorem (Pythagorean theorem).