plaquette

Borrowed from French plaquette (“small plaque”), allegedly coined in the 1860s.

plaquette (plural plaquettes)

1. A small metal tablet decorated in bas-relief, usually with a design including figures.
2. (physics) The smallest closed loop, enclosing the region between four lattice sites, in lattice gauge theory.

plaque +‎ -ette

plaquette f (plural plaquettes)

1. packet (of butter); strip, blister pack (of pills)
2. (hematology, cytology) platelet
3. (automobile, ~ de frein) brake pad

• thrombocyte

• “plaquette” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Borrowed from French plaquette (“small plaque”).

plaquette f (invariable)

1. booklet, pamphlet
2. a small commemorative plaque

• (booklet): opuscolo
• (small commemorative plaque): targhetta commemorativa, piccola targa commemorativa