厴 (yǎn) - Operculum — the hard protective plate or lid & also refers to a lid or cover in

厴Tone 3

yǎn ｜ 19 strokes ｜ radical:

妍嬿

厴 · yǎn

Operculum — the hard protective plate or lid that covers the opening of certain mollusk shells when the animal retracts inside;

also refers to a lid or cover in botanical and anatomical contexts.

Operculum — the hard protective plate or lidalso refers to a lid or cover in

Usage highlights

Snail operculumShell operculumGastropod operculumCalcareous operculumOperculum functionOperculum structure

Synonyms

  • 蓋— lid, cover (general term)
  • 殼蓋— shell cover

Usage & contexts

Examples

  • The snail closes its shell with an operculum (厴).
  • Some gastropods have a calcareous operculum (鈣質厴).
  • The operculum protects the snail from predators (厴保護蝸牛免受捕食者侵害).
  • In botany, an operculum is a lid-like structure (植物學中的厴是蓋狀結構).

Collocations

  • Snail operculum(蝸牛厴)
  • Shell operculum(殼厴)
  • Gastropod operculum(腹足類厴)
  • Calcareous operculum(鈣質厴)
  • Operculum function(厴的功能)
  • Operculum structure(厴的結構)

Cultural background

FAQ
  • Primarily a technical term in zoology and biology, with limited cultural significance in everyday Chinese.
  • The character is rarely used in common language and appears mainly in scientific contexts.
  • Derived from the concept of covering or sealing, related to the character's semantic components.

FAQ