quickening

noun

1. the process of showing signs of life

   noun.process

   Examples

   The quickening of seed that will become ripe grain.

   Source: WordNet 3.0

2. the stage of pregnancy at which the mother first feels the movements of the fetus

   noun.state

   Source: WordNet 3.0

3. the act of accelerating; increasing the speed

   noun.act

   Synonyms acceleration speedup

   Antonyms deceleration

   Source: WordNet 3.0

4. The act or process of making or of becoming quick.

   noun

   Source: webster1913