underglaze

English

Etymology

From under- +‎ glaze.

Noun

underglaze (countable and uncountable, plural underglazes)

1. A decorative slip applied to the surface of pottery before glazing.
   • 1971, Gwen White, Antique Toys And Their Background, page 236:

     Blue and white pieces from doll's dinner- and tea-services. Jug 1½ ins. high, cups 1 in. high, plate 1¼ ins. diameter. Also there are many larger cups and saucers, dishes, teapots and jugs, all very beautiful and some with S in underglaze blue marked on them.

Verb

underglaze (third-person singular simple present underglazes, present participle underglazing, simple past and past participle underglazed)

1. To apply a decorative slip to the surface of pottery before glazing.