Decipher ps -v Output

[Kurt Wall]

Okay, boys and girls,

If I say "ps v", I get the memory usage of the processes I own that
are owned by some TTY:

  PID TTY      STAT   TIME  MAJFL   TRS   DRS  RSS %MEM COMMAND
11458 pts/1    Ss     0:00      6   577  4274 1400  0.2 /bin/bash
11478 pts/1    S      1:59     22   483 16944 7028  1.3 jpilot
12002 pts/2    Ss     0:00      2   577  5374 1480  0.2 /bin/bash
14700 pts/1    S+     0:00      3    96  3075  588  0.1 less ps.txt
14767 pts/2    R+     0:00      0    60  2943  624  0.1 ps v

What is "TRS"? I'm guessing t<mumble> resident size, but that's only
a guess. The man page I have (from the procps-3.2.2 package) isn't
terribly helpful.

Thanks,

Kurt