[ adjective ] occurring or operating at the same time
"a series of coincident events"
Used in print(Raymond C. Binder et al., editors, Proceedings...)
Two pyrometers shown in figure 1 and 2 ( Pyrometer_Instrument_Co. Model 95 ) served for simultaneous measurement of the anode surface temperature and the temperature distribution along the anode holder .(M. Yokoyama et al., "Chemical and serological...)
For protein identification , fractions from the column were concentrated by pervaporation against a stream of air at 5 ` C or by negative pressure dialysis in an apparatus which permitted simultaneous concentration of the protein and dialysis against isotonic saline .(Richard F. McLaughlin, et al., "A study of the...)
It is distinctly possible , therefore , that simultaneous pressures in all three vessels would have rendered the shunts inoperable and hence , uninjectable .