The best replacement for contraction is baby moving.

The best alternatives to contraction are rated as following:
★★★★★  baby moving
★★★  possessive
★★★  braxton hicks
★★  conjunction
★  isometric contraction
★  baby movement
★  possessive pronoun
★  constriction
★  round ligament pain
★  recession
★  eccentric contraction
★  relaxation
★  cramp
★  expansion
★  movement
★  tension
★  contractility
★  abbreviation
★  contracture
  concentric contraction
  baby stretching
  compression
  ventricular contraction
  cardiac
  concentric
  thermal expansion
  isotonic contraction
  fetal movement
  gas pain
  isometric
  skeletal muscle contraction
  retraction
  isotonic muscle contraction

Your alternative for contraction is not listed? Suggest!
Speaking about contraction, one probably shouldn't forget about is.

Other search terms related to contraction and their ratings are:
★★★★★ is
★★★★ dilation
★★★ atp
★★ muscle shortening
★★ water breaking
★★ dilating
each subsequent stimulus
You have in mind a companion for contraction and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of contraction in all years. Click on graph for more.
contraction
baby moving
possessive