chlorophyll
/'klɔrəfil/
Học thuậtThân thiện
Definition
- Noun:
- A green pigment in plants and algae: Chlorophyll is any of several green pigments found in the chloroplasts of plants, algae, and cyanobacteria. It is essential for photosynthesis, the process by which these organisms convert light energy into chemical energy.
Usage
- Chlorophyll is a biochemical term used primarily in biology and botany.
- It is typically used as a non-count (mass) noun when referring to the substance in general.
- It can be used as a count noun when referring to different specific types or forms (e.g., chlorophyll a, chlorophyll b).
Examples
- Noun:
- The leaves are green because they contain chlorophyll.
- Chlorophyll absorbs light most efficiently in the blue and red parts of the electromagnetic spectrum.
- Scientists studied the different forms of chlorophyll present in the algae.
Advanced Usage
- "Chlorophyll fluorescence": A measurement technique used to assess the physiological state and photosynthetic efficiency of plants.
- Chlorophyll fluorescence analysis is a non-invasive method to study plant stress.
Variants and Related Words
- Chlorophyllous (adj): Relating to or containing chlorophyll.
- The chlorophyllous tissues of the leaf.
- Chloroplast (n): The organelle in plant cells where photosynthesis and chlorophyll are located.
- Chloroplasts are responsible for a plant's green color.
Synonyms
- Green pigment: A general descriptive synonym.
- Photosynthetic pigment: A functional synonym highlighting its role.
Different Meanings
- The word "chlorophyll" has a single, specific scientific meaning related to biology and photosynthesis. It does not have common idiomatic or figurative uses.
Idioms
- There are no common idioms using the word "chlorophyll."
Phrasal Verbs
- There are no phrasal verbs using the word "chlorophyll."
Noun
- any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms