1. of, relating to, or resembling lichen
Usage: botanical; technical
2. covered with or containing lichen
Usage: botanical

Examples

• The lichenous growth covered the old stone wall.
• Scientists studied the lichenous formations on the tree bark.
• The rock face had a distinctly lichenous appearance.
• Lichenous patches dotted the forest floor.
• The botanist identified several lichenous species on the cliff.
• Ancient tombstones often develop lichenous coverings over time.