cyanobacteria
part of speech
noun, plural (cyanobacteria; singular cyanobacterium)
meaning for a pupil
1) Tiny living things, a kind of bacteria, that make their own food from sunlight like plants do. tree →
2) Sometimes called blue-green algae, they live in water and can turn ponds and lakes green. tree →
sense in the lessons
In science, cyanobacteria matter because they were among the first living things to make oxygen by photosynthesis, which helped make Earth's air breathable for animals. In safety, a lake with a «blue-green algae» warning may contain cyanobacteria that can be poisonous to people and dogs, so you should not swim there. Phrases: «blue-green algae», «algal bloom».
examples
- Cyanobacteria make food from sunlight just like plants. tree →
- Billions of years ago, cyanobacteria filled the air with oxygen. tree →
- The sign said the lake had cyanobacteria, so no swimming. tree →
- Keep your dog out of the green, scummy water. tree →
- Under the microscope the cyanobacteria looked like tiny green threads. tree →
- Stromatolites are rocky mounds built by cyanobacteria. tree →
- A warm summer can make cyanobacteria grow fast in ponds. tree →
note
Usually used in the plural. Pronounced «sigh-AN-oh-bac-TEER-ee-a». «Cyano» means blue. They are often called algae, but they are really bacteria, not true algae. Safety: blue-green algae can make you ill; do not drink or swim in water with a warning sign.
Trees and pragmatics
Every meaning and example of «cyanobacteria» parsed by Mova, each sentence with its dependency tree and frames.