chitin
/'kaitin/
Học thuậtThân thiện
Definition
- Noun:
- A tough, semitransparent, horny substance that is a complex polysaccharide. It is the primary structural component in the exoskeletons of arthropods (such as insects, crustaceans, and arachnids) and the cell walls of certain fungi.
Usage
- Chitin is a biological material that provides rigidity and protection. It is not a mineral but a naturally occurring polymer synthesized by living organisms.
- It is used to describe the main structural substance in specific biological contexts.
Examples
- Noun:
- The hard outer shell of a beetle is made of chitin.
- Chitin provides structural support to the cell walls of mushrooms and other fungi.
- Scientists study the properties of chitin for potential applications in biodegradable materials.
Advanced Usage
- "Chitinous" (Adjective): Describing something that contains, resembles, or is made of chitin.
- The crab has a chitinous exoskeleton that it must molt to grow.
Variants and Related Words
- Chitosan: A derivative of chitin, obtained by treating chitin with an alkaline substance. It has various commercial and biomedical uses.
- Chitinase: An enzyme that breaks down chitin.
Synonyms
- Structural polysaccharide: A more general scientific term for complex carbohydrates that provide support.
- Biopolymer: A broad term for polymers produced by living organisms, which includes chitin.
Different Meanings
- The word chitin has a single, specific meaning in biology and biochemistry. It does not have common idiomatic or figurative uses.
Noun
- a tough semitransparent horny substance; the principal component of the exoskeletons of arthropods and the cell walls of certain fungi