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A sexual attraction to either specifically the Duomo in Florence Italy, or else architecturally sound large domes.

Alternatively, a male who gets by exclusively having oral sex, a. k. a. 'dome'.

The two need not be mutually exclusive.
I thought he wanted to make love from my hotel balcony but he just wanted to get head and stare at the Florence skyline. Must've been a Duomosexual.
by Julian SIlverman June 14, 2018
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