| splay | 1. To lay open the end of a tubular structure by making a longitudinal incision to increase its potential diameter. See: spatulate. 2. The rounding of the corner on the graph relating rate of renal tubular secretion or reabsorption of a substance to its arterial plasma concentration, due primarily to the fact that some nephrons reach their tubular maximum before others do. (05 Mar 2000) |
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