TongTong
Sign in

甲醛 (jiǎ quán) — formaldehyde

Definition

noun
formaldehyde

Examples

  • 甲醛，。
    Xīn jiā jù hán yǒu jiǎ quán, xū yào tōng fēng.
    New furniture contains formaldehyde and needs ventilation.
  • 甲醛。
    Kōng qì zhōng de jiǎ quán nóng dù tài gāo huì yǐng xiǎng jiàn kāng.
    A high concentration of formaldehyde in the air can affect health.
  • 甲醛。
    Yī shēng jiàn yì jiǎn shǎo yǔ jiǎ quán de jiē chù.
    Doctors recommend reducing contact with formaldehyde.

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.

甲jiǎformyl/first
醛quánaldehyde

The formyl sense in 甲 specifies the aldehyde in 醛, naming formaldehyde.

Characters in this word

A drawing of the thing itself, worn down over three thousand years into a few strokes.

甲 is drawn as a hard protective shell, carapace, or scales of an animal, or as armor made of connected plates.

Open 甲 →

Two or more meaningful parts placed together so that their meanings combine into a new one.

  • 酉酉yǒuoxygenated functional group
  • 荃荃quánfragrant plant

醛 pairs 酉, meaning an oxygenated functional group, with 荃, a fragrant plant, for its sound; the plant part also points to the smell of many aldehydes.

Open 醛 →
Appears in
Materials & Substances

Browse more HSK 7-9 words or search the full 43,000-word dictionary.