[C13 (meaning heap of firewood): perhaps from Scandinavian; compare Old Norse hraukr rick 1] ruck (rÊk) n. a wrinkle, crease, or fold. vb (usually foll by up) to become or make wrinkled, creased, or puckered [C18: from Scandinavian; related to Old Norse hrukka] ruck (rÊk) n. slang a fight [C20: short for ruckus] ruck (rÊk) n (Military) military slang a rucksack
As your baby's birthday gets close, your cervix begins to dilate, or open up. Dilation is checked during a pelvic exam. It is measured in centimeters, from 0 (no dilation) to 10 (full dilation) Typically, if you're four centimeters dilated, you're in the active stage of labor.
Labor: Six Signs You'll Soon Be There. Just as every pregnancy is different, every delivery is unique. Some women get no clues that labor is around the corner, and then -- wham! -- here it comes. Others have telltale signs for weeks, maybe even a false start or two, before the real thing begins. The simple truth is, there's no way to predict exactly when you'll go into labor. In fact, no one even knows for sure what triggers the big event, although hormones are thought to play a part.