li·chen·ol·o·gy 
(lī′kə-nŏlə-jē)
(lī′kə-nŏlə-jē)n.
The branch of biology that deals with the study of lichens.
li′chen·olo·gist n.
- national monument
- national park
- national seashore
- National Socialism
- nationhood
- nationless
- Nation of Islam
- nation-state
- nationwide
- native
- Native Alaskan
- Native American
- native-born
- Native Hawaiian
- natively
- nativeness
- nativism
- nativist
- nativistic
- nativity
- Nat "King"
- natl.
- NATO
- natriuresis
- natriuretic