[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/pondweed/)

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# pondweed

noun (pondweed — uncountable; a pondweed, pondweeds)

«pondweed» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

A plant that grows in ponds and slow rivers, often under or on the water, with green leaves or stems. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/#m1)

### In the lessons

In science lessons, pondweed (often Canadian pondweed, Elodea) is used in experiments on photosynthesis: put it in water under a lamp and count the oxygen bubbles. Pondweed gives food, shelter and oxygen to pond animals like tadpoles and snails. In stories, pondweed is slimy and tangly. Phrases: «count the bubbles», «pondweed experiment», «covered in pondweed».

### Examples

- We counted the oxygen bubbles coming from the pondweed. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/#x1)
- When the lamp was closer, the pondweed made more bubbles. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/#x2)
- Tadpoles hide in the pondweed. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/#x3)
- The frog jumped out covered in green pondweed. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/#x4)
- Too much pondweed can choke a pond. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/#x5)
- Our class pond has lots of pondweed. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/#x6)

### Note

Usually uncountable («some pondweed»); «pondweeds» for kinds. One word. In the experiment, more light means more bubbles (more photosynthesis) up to a point — a fair test changes only the distance of the lamp.

## On Mova

- [Trees and pragmatics of «pondweed» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/pondweed/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«pondweed» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/pondweed.html) on Mova free.