algae

/ˈældʒiː/ (bre, ipa) · [ˈældʒi] /ˈældʒiː/ (ame, ipa)

algae — noun

1. simple living things that grow in water or on wet surfaces and make their own fo

1.名詞C1
釋義

simple living things that grow in water or on wet surfaces and make their own food using light, without the usual plant parts seen on land

例句

Hiro scraped green algae from the fish tank before class.

collocation: green algae

After the storm, brown algae stuck to the wet harbor wall.

同義詞
  • seaweed

    usually refers to the larger kinds that grow in the sea and can be seen easily

  • plankton

    covers only drifting water life and also includes tiny animals, not just plant-like forms

  • microorganisms

    much broader; includes tiny living things outside water as well

文法句型

green algae in water

algae on rocks

study algae under a microscope

用法筆記

In careful English, algae is the plural form of alga, especially in biology writing. People often use it for green or brown growth seen in ponds, on rocks, or inside fish tanks rather than for one single organism.

常見錯誤

❌This algae is covering the pond.
✅These algae are covering the pond.
💡In careful English, algae is plural; use alga for one organism.