The labrum in architecture was a large water-filled vessel or basin with an overhanging lip. Marble or granite labrums were a common feature of Roman thermae.1
Examples
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Labrum in Milan -
Labrum in Mausoleum of Theodoric in Ravenna -
Lateran Baptistery Rome -
San Bartolomeo all'Isola, Rome -
Pio-Clementino Museum Vatican -
Labrum from Baths of Caracalla Vatican museum
References
References
- Chisholm, Hugh, ed. (1911). . Encyclopædia Britannica. Vol. 16 (11th ed.). Cambridge University Press. p. 30.