生化需氧量
shēng​huà​xū​yǎng​liàng

biochemical oxygen demand

生 shēng, sheng life

Pictograph of a sprout (屮) emerging from the ground (一).

Components

屮
屮 Iconic component
chè, cǎo sprout

Depicts a sprout growing.

Change in form
Due to historical stylistic changes, this component is less similar to 屮 than it was in ancient scripts.
一
一 Iconic component
yī one

Used here to depict the ground.


Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Mid Western Zhou ~900 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Warring States ~250 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (7 of 11 verified)

性青星省胜姓牲甥笙旌眚

Meaning (4 of 5 verified)

靑甤甦產産

Deleted (1)

产

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartsraengsreŋ (MC srj- > sr-; or *s.reŋ ?)bear, be born; live
sraengsreŋ fresh, raw
srjaengsreŋ (or *s.reŋ ?)bear, be born; live

說文解字

《說文》：“生，進也。象艸木生出土上。”

Sources

Character origin
季旭昇《說文新證》p.506漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

化 huà change

Pictograph of a right-side up person (亻) and an upside-down person (𠤎), depicting the meaning "turn around" or "transform".

Components

亻
亻 Iconic component
rén person

亻 is a component form of 人.

𠤎
𠤎 Iconic component
huà upside-down person

Depicts an upside-down person.


Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Spring and Autumn 771-476 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Qin 221-206 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (4 of 7 verified)

花华货靴讹貨訛

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartxwaeHqʷʰˤ<r>aj-s transform

說文解字

《說文》：“化，教行也。从，从人，亦聲。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

需 xū need

Original meaning: become wet

Pictograph of a person standing under the rain (雨), representing the meaning "become wet", now written as 濡. The current meaning is a phonetic loan. The person component was later replaced with the phonetic component 而.

Components

雨
雨 Iconic component
yǔ rain
而
而 Sound component
ér and
Change in sound

Character Evolution

Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (1 of 11 verified)

儒懦蠕孺嚅糯濡薷襦颥顬

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartsjus-no wait

說文解字

《說文》：“需，也，遇雨不進止也。从雨，而聲。《易》曰：‘雲上於天，需。’”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

氧 yǎng oxygen

Phonosemantic compound. 气 represents the meaning and 羊 represents the sound.

Components

气
气 Meaning component
qì, qi air
羊
羊 Sound component
yáng sheep

Sources

Readings & variants
Unicode

量 liàng, liang, liáng measure

Phonosemantic compound. 東 (pictograph of a bag) represents the meaning and 昜 represents the sound.

Components

昜
昜 SoundRemnant component
yáng bright

Modern form written like 旦.

Change in form
Due to historical stylistic changes, this component is less similar to 昜 than it was in ancient scripts.
東
東 IconicRemnant component
dōng east

Depicts a bag. Modern form written like 里.

Change in form
Due to historical stylistic changes, this component is less similar to 東 than it was in ancient scripts.

Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Mid Western Zhou ~900 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Warring States ~250 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Qin 221-206 BC
Seal form
Seal Shuowen ~100 AD
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (1)

糧

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartljang[r]aŋ measure (v.)
ljangH[r]aŋ-s measure (n.)

說文解字

《說文》：“量，稱輕重也。从重省，曏省聲。，古文量。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)