Spu″ri‐ous (spū″rĭ‐ŭs), a. [L. spurius.] 1. Not proceeding from the true source, or from the source pretended; not genuine; counterfeit; false; adulterate.
2. Not legitimate; bastard; as, spurious issue. “Her spurious firstborn.” Milton.
Spurious primary, orSpurious quill(Zoöl.), the first, or outer, primary quill when rudimentary or much reduced in size, as in certain singing birds. — Spurious wing(Zoöl.), the bastard wing, or alula.
Syn. — Counterfeit; false; adulterate; supposititious; fictitious; bastard.
— Spu″ri‐ous‐ly, adv. — Spu″ri‐ous‐ness, n.