Roman pearl
now chiefly historical
noun
An imitation pearl of a type originally imported from Italy, usually made by coating the interior of a hollow glass bead with a nacreous or iridescent substance.
Origin
Late 18th century; earliest use found in The Times.
- protomoon
- protomorph
- protomorphic
- proto-music
- protomê
- proton
- proton accelerator
- proton-accepting
- proton acceptor
- protonate
- protonation
- proton-donating
- proton donator
- proton donor
- protonema
- protonemal
- protonematal
- protoneolithic
- protonephridial
- protonephridium
- protonephron
- protonephros
- proton gradiometer
- protonic
- protonically