20-letter words containing c, l, o, b
- wilson cloud chamber — cloud chamber.
- yellow-billed cuckoo — a North American cuckoo, Coccyzus americanus, that has a yellow bill and, unlike many cuckoos, constructs its own nest and rears its own young.
- yellow-breasted chat — an American warbler, Icteria virens, having a yellow throat and breast and greenish-brown upper parts and noted for imitating the songs of other species.