seashell
Học thuậtThân thiện
Definition
Noun: 1. The hard, protective outer layer of a marine mollusk or other sea creature: A seashell is the calcareous or chitinous exoskeleton created by an animal that lives in the sea, such as a clam, oyster, snail, or sea urchin. These shells are often found empty, washed up on beaches.
Usage
The word "seashell" is a countable noun. It refers specifically to the shell itself, not the living animal inside it. It is commonly used when discussing beachcombing, collecting, marine biology, or decoration. * You can find a seashell. * You can collect seashells. * You can hear the ocean in a seashell.
Examples
- The child filled her bucket with colorful seashells from the shore.
- He held a large conch seashell to his ear.
- The necklace was made from tiny, polished seashells.
- We studied the different types of seashells in our marine biology class.
Advanced Usage
- As a modifier: "Seashell" can be used attributively to describe other nouns.
- The shop sold seashell jewelry and seashell crafts.
- In a collective sense: While "seashell" is countable, it can be used in a general, mass sense.
- The beach was covered in seashell and seaweed.
Variants and Related Words
- Shell (noun): A more general term for the hard outer covering of various animals, including land snails (snail shell), nuts (nut shell), and eggs (egg shell). "Seashell" is a specific type of shell.
- Conch (noun): A specific type of large, spiral seashell from certain sea snails.
- Scallop (noun): A type of bivalve mollusk known for its fan-shaped, ribbed seashell.
Synonyms
- Shell (when context clearly indicates a marine origin)
- Test (a scientific term, especially for the shell of an echinoderm like a sea urchin)
- Carapace (typically refers to the hard upper shell of crustaceans like crabs or turtles)
Idioms and Phrases
- Seashell pink: A specific pale pink color that resembles the inside of some seashells.
- She painted the nursery walls seashell pink.
Noun
- the shell of a marine organism