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late 13c., "glass vial to receive urine for medical inspection," from Old French urinal, from Late Latin urinal, from Latin urinalis (adj.) "relating to urine," from urina (see urine). Meaning "chamber pot" is from late 15c. Modern sense of "fixture for urinating (for men)" is attested from 1851.
urinal u·ri·nal (yur'ə-nəl)
A vessel into which urine is passed.