antegrade urography n.
X-ray examination of the urinary tract utilizing percutaneous injection of a contrast agent into the renal calices or pelvis, or into the urinary bladder.
occurring before noon. of or relating to the forenoon. Historical Examples antemeridian, an-te-me-ri′di-an, adj. before midday or noon. Chambers’s Twentieth Century Dictionary (part 1 of 4: A-D) Various adjective before noon; in the morning
prenatal: an antenatal clinic. adjective occurring or present before birth; during pregnancy noun (informal) Also called prenatal. an examination during pregnancy adj. “before birth,” 1798, from Latin ante “before” (see ante) + natal. antenatal an·te·na·tal (ān’tē-nāt’l) adj. See prenatal.
a porch or narthex before the nave of a church.
- Antenna array
a directional antenna or system of antennas for radio transmission or reception.