pearl definition by Wordo

Noun

A

shelly

concretion

,

usually

rounded

,

and

having

a

brilliant

luster

,

with

varying

tints

,

found

in

the

mantle

,

or

between

the

mantle

and

shell

,

of

certain

bivalve

mollusks

,

especially

in

the

pearl

oysters

and

river

mussels

,

and

sometimes

in

certain

univalves

.

It

is

usually

due

to

a

secretion

of

shelly

substance

around

some

irritating

foreign

particle

.

Its

substance

is

the

same

as

nacre

,

or

mother-of-pearl

.

Round

lustrous

pearls

are

used

in

jewellery

.

Verb

To

set

or

adorn

with

pearls

,

or

with

mother-of-pearl

.