8. (Zoöl.) (a) A young pike; a pickerel. (b) The jurel. (c) A large,
California rock fish (Sebastodes paucispinus); -- called also
boccaccio, and mérou. (d) The wall-eyed pike.
9. A drinking measure holding half a pint; also, one holding a quarter
of a pint. [Prov. Eng.] Halliwell.
10. (Naut.) (a) A flag, containing only the union, without the fly,
usually hoisted on a jack staff at the bowsprit cap; -- called also
union jack. The American jack is a small blue flag, with a star for
each State. (b) A bar of iron athwart ships at a topgallant masthead,
to support a royal mast, and give spread to the royal shrouds; --
called also jack crosstree. R. H. Dana, Jr.
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