Association without causation between variables.

Correlation not implying causation necessarily.

In radio communication, a spurious emission is any component of a radiated radio frequency signal the complete suppression of which would not impair the integrity of the modulation type or the information being

Non-functional, visually deceptive appendage.

False joint stiffness without fusion.

Either of the digraphs ει and ου in Ancient Greek, when they represent a long vowel arising from compensatory lengthening or contraction rather than an actual diphthong