What does E mean in ps STAT field?

I have multiple processes which are unresponsive with E as their STAT. One is Z for Zombie, but I could not find what E means. Here's the ps output:

constantin-novoselskys-macbook-pro:~ cnovoselsky$ ps -axlwwo state,pid,comm | grep '('
501 200 183 6000 0 0 0 0 0 - E 6fd02a0 ?? 0:00.00 (Finder) (Finder)
0 459 1 6000 0 0 0 0 0 - Es 6fd0e44 ?? 0:00.00 (backupd) (backupd)
501 469 183 6000 0 0 0 0 0 - E 6fd004c ?? 0:00.00 (System Preferen (System Preferenc)
0 471 469 6100 0 0 0 0 0 - Z 6fcfba4 ?? 0:00.00 (writeconfig) (writeconfig)
501 494 183 6000 0 0 0 0 0 - E 6fd258c ?? 0:00.00 (Final Cut Pro) (Final Cut Pro)
501 1403 183 6000 0 0 0 0 0 - E 6fcf4a8 ?? 0:00.00 (iMovie) (iMovie)

Any help?