candelabra vs candelabrum

candelabra and candelabrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
candelabra	Yes	No	No	No
candelabrum	Yes	No	No	No

As nouns, candelabra and candelabrum are synonyms defined as:

candelabra and candelabrum: branched candlestick; ornamental; has several lights

candelabra (noun)	candelabrum (noun)
branched candlestick; ornamental; has several lights	branched candlestick; ornamental; has several lights