English Reference

Word

algal

Phoneticsal·gal

US/ˈæɫɡəɫ/

UK/ˈælɡəl/

Definition

adj. relating to algae, which are simple plants that live in water. You use this to describe things like algae growth or the color of the water.

adj. relating to or derived from algae. Often used in biological or environmental contexts to describe aquatic organisms or their byproducts.

Examples

“The lake water turned green due to algal growth.”

“Scientists are studying algal blooms to understand how rising temperatures affect local ecosystems and water quality.”

“The bioreactor was designed to harness algal photosynthesis, converting carbon dioxide and sunlight into oxygen and biomass for further industrial processing.”

Examples

simple

“The lake water turned green due to algal growth.”

contextual

“Scientists are studying algal blooms to understand how rising temperatures affect local ecosystems and water quality.”

complex

“The bioreactor was designed to harness algal photosynthesis, converting carbon dioxide and sunlight into oxygen and biomass for further industrial processing.”

Real-World Examples

“An algal bloom is the rapid growth of algae and other plant-like microorganisms.”
The Guardian · 14 Aug 2026
“Nitrogen downstream feeds algal blooms that starve rivers of oxygen and kill fish, and it can contaminate the drinking water that local communities rely on.”
The Conversation · 29 Jul 2026
“Meanwhile, overuse of phosphorus-based fertilizers contributes to algal blooms and dead zones in waterways worldwide.”
Smithsonian Magazine · 17 Jun 2016

Etymology

From alga + -al.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Collocations

algal blooms

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

englishreference.com/q/algal

English Reference