noun
- the body of a plant (such as a fungus, alga, or lichen) that lacks true roots, stems, and leaves
Usage: botanical
Examples
- The lichen’s thallus was crusty and gray on the rock surface.
- Algae have a simple thallus structure without specialized tissues.
- The fungal thallus spread across the decaying log.
- Scientists studied the thallus of the seaweed to understand its growth patterns.
- The moss-like thallus absorbed water directly from the air.
- Each species of lichen has a distinctive thallus form.