nacre(redirected from NACRA)
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Related to NACRA: NACCRRA
[French, from Old French nacle, from Old Italian naccaro, drum, nacre, from Arabic naqqāra, small drum, from naqara, to bore, pierce; see nqr in Semitic roots.]
na′cred (-kərd), na′cre·ous (-krē-əs) adj.
(Zoology) the technical name for mother-of-pearl
[C16: via French from Old Italian naccara, from Arabic naqqārah shell, drum]
a hard, iridescent substance that forms the inner layer of certain mollusk shells, used for making buttons, beads, etc.
[1500–10; compare Italian madreperla, obsolete French mère perle]