picayune /pik-ə-ūnˈ/

Petty

1. A small coin worth 61/4 cents, current in the USA before 1857
2. A five-cent piece, or other small coin
3. Anything of little or no value (US informal)

picayunˈish adjective

• luminance signal
• luminance signals
• luminant
• luminants
• luminaries
• luminarism
• luminarisms
• luminarist
• luminarists
• luminary
• lumination
• luminations
• lumine
• lumined
• lumines
• luminesce
• luminesced
• luminescence
• luminescences
• luminescent
• luminesces
• luminescing
• luminiferous
• lumining
• luminist