Meaning & use
oyster shell
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Meanings
nouncountable
The hard, rough outer covering of an oyster, often found on beaches or used in crafts and gardening.
Grammar: Countable: you can say one oyster shell, two oyster shells. It can also be used as an uncountable material noun in some contexts, like a pile of oyster shell.
Patterns
- a pile of oyster shells
- collect oyster shells
- made of oyster shell
We collected a bucket of oyster shells on the beach.
The path was covered with crushed oyster shell.
She used an oyster shell as a small dish for the butter.
noununcountabletechnical
The shell of an oyster considered as a source of calcium or as a material in agriculture and industry.
Grammar: Uncountable when referring to the material: The farmer spread oyster shell on the field. Not 'an oyster shell' in this sense.
Patterns
- crushed oyster shell
- oyster shell calcium
- spread oyster shell
The chickens need crushed oyster shell to help them lay strong eggs.
Oyster shell is often used to raise the pH of acidic soil.
Some calcium supplements are made from oyster shell.
Word forms
| plural | oyster shells |
|---|
Common combinations
- crushed oyster shell
- The garden center sells crushed oyster shell for birds.
- oyster shell necklace
- She wore a beautiful oyster shell necklace to the party.
- oyster shell grit
- The hen pecked at the oyster shell grit in the feeder.
- a pile of oyster shells
- There was a huge pile of oyster shells behind the restaurant.
- oyster shell calcium
- This supplement contains oyster shell calcium.
Synonyms and how they differ
Word family
- oyster noun
- The sea creature that lives inside the shell.
Commonly confused: oyster shell or clam shell?
oyster shell vs clam shell
A clam shell is from a clam, which is a different animal. Clam shells are usually smoother and more oval.
Practice
Which sentence uses 'oyster shell' correctly?
Choose one answer.
An oyster shell is the hard outer covering, so you can find it on a beach. The other options confuse the shell with the living animal or give it impossible actions.
Make it your own
Write a sentence using “oyster shell”, then check it and compare it with the examples above.