waterbloom
nounUK /ˈwɔːtəbluːm/
US /ˈwɔːtərbluːm/
A waterbloom is a thick layer of tiny plants floating on water.
The pond was covered with a green waterbloom.
OTHER MEANINGS
2. A sudden, heavy flowering of aquatic plants.
The waterbloom of lilies turned the lake pink.
3. A decorative flower-shaped pattern used in fountains.
The fountain's waterbloom sprayed in a wide circle.
4. A soft, floating cluster of petals on water.
Petals formed a waterbloom on the still stream.