chalcidicum

[kal-sid-i-kuh m]
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noun, plural chal·cid·i·ca [kal-sid-i-kuh] /kælˈsɪd ɪ kə/.

an annex of an ancient Roman basilica.
an annex or appendage, especially a narthex, of an early Christian basilica.

Origin of chalcidicum

1720–30; < Latin, noun use of neuter of Chalcidicus < Greek Chalkidikós, equivalent to Chalkid- (stem of Chalkís) Chalcis + -ikos -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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