Imploding and Implosion

noun

• A sudden inward collapse.
  • usage: "the implosion of a light bulb"
• The initial occluded phase of a stop consonant. .

• (n.) A sudden compression of the air in the mouth, simultaneously with and affecting the sound made by the closure of the organs in uttering p, t or k, at the end of a syllable (see Guide to Pronunciation, //159, 189); also, a similar compression made by an upward thrust of the larynx without any accompanying explosive action, as in the peculiar sound of b, d, and g, heard in Southern Germany.
• (n.) A burstion inwards, as of a vessel from which the air has been exhausted; -- contrasted with explosion.