median bar of Mercier n.
A band of fibromuscular tissue encircling the interureteric ridge of the urinary bladder, which occasionally can obstruct the urinary tract.
- Median groove of tongue
median groove of tongue n. A slight longitudinal depression that runs forward on the dorsal surface of the tongue. Also called longitudinal raphe of tongue, median longitudinal raphe of tongue.
noun 1. the quantity of a lethal substance, as a poison or pathogen, or of ionizing radiation that will kill 50 percent of the organisms subjected to it in a specified time period. Symbol: LD 5 0. noun 1. the amount of a drug or other substance that, when administered to a group of experimental […]
- Median line
median line n.
- Median longitudinal raphe of tongue
median longitudinal raphe of tongue n. See median groove of tongue.