parturient vs pregnant

parturient

adj
  • In labour, about to give birth, or having recently given birth. 

  • Of, related to, or caused by childbirth 

  • Facilitating labour. 

  • About to create a new product, or float a new idea. 

noun
  • A substance that facilitates labour. 

  • One who is in labour, who is about to give birth, or who has recently given birth. 

pregnant

adj
  • Of a couple: expecting a baby together. 

  • Fertile, prolific (usually of soil, ground, etc.). 

  • Having numerous possibilities or implications; full of promise; abounding in ability, resources, etc. 

  • Carrying developing offspring within the body. 

noun
  • A pregnant woman. 

How often have the words parturient and pregnant occurred in a corpus of books? (source: Google Ngram Viewer )