Oulachan \Ou"la*chan\, n. (Zool.) Same as {Eulachon}. [1913 Webster]
Eulachon \Eu"la*chon\, n. [Native Indian name.] (Zo["o]l.) The candlefish. [Written also {oulachan}, {oolacan}, and {ulikon}.] See {Candlefish}. [1913 Webster]