alga

/'ælgə/

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Word: Alga (plural: algae)

Definition: An "alga" is a simple, usually green organism that lives in water. It contains chlorophyll, which is the same green pigment found in plants. Unlike plants, algae do not have true stems, roots, or leaves. They can be found in oceans, rivers, lakes, and even on moist surfaces.

Usage Instructions:

• "Alga" is a noun and can be used to refer to a single organism. When talking about more than one, use "algae."
• It is often used in scientific contexts but can also appear in everyday discussions about nature or the environment.

Example Sentences:

1. Basic Usage: "The pond was full of green algae."
2. Advanced Usage: "Researchers are studying how different types of algae can be used as a renewable energy source."

Word Variants:

• Algal (adjective): Related to algae. For example, "The algal bloom made the water look green."
• Algae (plural noun): The plural form that refers to multiple algae. For example, "There are many types of algae in the ocean."

Different Meanings:

In general English usage, "alga" specifically refers to these aquatic organisms. The word does not have many alternate meanings outside of its scientific context.

Synonyms:

• Seaweed (though this is more specific to certain types of algae)
• Phytoplankton (refers to microscopic algae)

Idioms and Phrasal Verbs:

There are no common idioms or phrasal verbs that specifically use the word "alga." However, you might hear discussions about "algal blooms," which refer to rapid increases in algae populations that can affect water quality.

Summary:

"Alga" is a simple water-dwelling organism that plays an essential role in aquatic ecosystems.

Academic

Noun

1. primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves

Synonyms

• algae