This is a short listing of some of the terminology that is used to define the conditions.

MM: Measured Move, this is the high to low range for a specific time period.
PDMM: Previous Day's Measured Move
PWMM: Previous Week's Measured Move
PMMM: Previous Month's Measured Move

PDC: Previous Day's Close
PWC: Previous Week's Close
PMC: Previous Month's Close

YHOD: Yesterday's High Of the Day
YLOD: Yesterday's Low Of the Day
CHOD: Current Day's High
CLOD: Current Day's Low
CHOW:  Current Week's High
CLOW: Current Week's Low
CHOM: Current Month's High
CLOM: Current Month's Low