"Pearlaceous" is a word in ENGLISH

A genus of marine bivalves, having a pearly interior, allied to the pearl oyster; -- so called from a supposed …

To decorate as with pearls or with anything resembling pearls.

To form into pearls, or into that which resembles pearls.

Pertaining to, or resembling, pearl; pearly.

Pertaining to, or resembling, pearl; pearly.

Hence, figuratively, something resembling a pearl; something very precious.

To cause to resemble pearls; to make into small round grains; as, to pearl barley.

To resemble pearl or pearls.

Resembling pearl or pearls; clear; pure; transparent; iridescent; as, the pearly dew or flood.

Pearly; resembling pearl.