Definitions

1. adjective

relating to or resembling algae

“The algal blooms in the lake have been causing a strong odor.”

2. noun

a type of bloom caused by an excessive growth of algae

“The algal growth in the aquarium needed to be removed.”

3. noun

a substance that resembles or is composed of algae

“The algal deposit on the stone was a result of years of exposure to water.”