With the simultaneous nomination, Obama is daring the GOP to act.
"The same mixture could be found after the simultaneous consumption of alcoholic drinks and smoking," the note added.
Consider the withdrawal from Iraq and the simultaneous intensification of the war against the Taliban.
1650s, from Medieval Latin simultaneus, perhaps from simultim "at the same time," extended from Latin simul "at the same time" (see similar (adj.)), or from simul with ending abstracted from Late Latin spontaneus, where the -t- is organic. Related: Simultaneously.