Premature labour and Parturiency

Premature labour noun - Labor beginning prior to the 37th week of gestation.

Parturiency and premature labour are semantically related. In some cases you can use "Parturiency" instead a noun phrase "Premature labour".

Parturiency noun - Concluding state of pregnancy; from the onset of contractions to the birth of a child.

Premature labour and parturiency are semantically related. Sometimes you can replace phrase "Premature labour" with "Parturiency", this terms are similar.