What is "spelding"

Spelding \Spel"ding\, n. [Scot. speld to spread out, spelder to split. spread open; cf. G. spalten split.] A haddock or other small fish split open and dried in the sun; -- called also speldron. [Scot.]

n. (context Scotland English) A haddock or other small fish split open and dried in the sun.