What does "laker" mean?

Laker: (a) One of the poets of the Lake school. See Lake poets, under Lake, n. (b) (Zoöl.) A fish living in, or taken from, a lake, esp. the namaycush. (c) A lake steamer or canal boat. The bridge tender . . . thought the Cowies "a little mite" longer than that laker. The Century.