c. 1600, from Latin lichen, from Greek leichen, originally "what eats around itself," probably from leichein "to lick" (see lick). Originally used of liverwort; the modern sense first recorded 1715. Related: Lichenaceous.
中文解释
1. 地衣（lichen）是真菌和光合生物（绿藻或蓝细菌）之间稳定而又互利的共生联合体，真菌是主要成员，其形态及后代的繁殖均依靠真菌。也就是说地衣是一类专化性的特殊真菌。2. originally "what eats around itself".3. lick => lichen.4. 谐音“来啃”。
实用例句
1. The stone stairway was covered with lichen.
那石级长满了地衣.
来自《简明英汉词典》
2. Lichen is a form in which green or bluegreen algae and a fungus live together symbiotically.
地衣是一种绿藻或蓝藻与一种真菌共生的形式.
来自辞典例句
3. The case was diagnosed as lichen sclerosus et atrophicus with localized scleroderma.
患者诊断为硬化萎缩性苔藓合并局限性硬皮病.
来自互联网
4. To explore the relationship between oral lichen planus and systematic illness.
目的:探索口腔扁平苔藓与系统性疾病的关系.
来自互联网
5. A bird soars over the lichen - draped remains of Manorbier Castle in Wales.