2. Not legitimate; bastard; as, spurious issue. ``Her
spurious firstborn.'' --Milton.
{Spurious primary}, or {Spurious quill} (Zo["o]l.), the
first, or outer, primary quill when rudimentary or much
reduced in size, as in certain singing birds.
{Spurious wing} (Zo["o]l.), the bastard wing, or alula.
Syn: Counterfeit; false; adulterate; supposititious;
fictitious; bastard. -- {Spu"ri*ous*ly}, adv. --
{Spu"ri*ous*ness}, n.