rupture

noun

1. (countable, uncountable)A burst, split, or break.

   “Hatch from the egg, that soon, / Bursting with kindly rupture, forth disclosed / Their callow young.”

2. (countable, uncountable)A social breach or break, between individuals or groups.

   “He knew that policy would disincline Napoleon from a rupture with his family.”

   “Thus a war was kindled with Lubec; Denmark took part with the king's enemies, and made use of a frivolous pretence, which demonstrated the inclination of his Danish majesty to come to a rupture.”

3. (countable, uncountable)A break or tear in soft tissue, such as a muscle.
4. (countable, uncountable)A failure mode in which a tough ductile material pulls apart rather than cracking.

verb

1. (ambitransitive)To burst, break through, or split, as under pressure.

   “The cracking sound, he explained, as far as I, a non-plumber, could understand, was the sound of the overworked, undermaintained and weirdly installed heating unit’s core rupturing and spilling water into the basement.”

2. (intransitive)To dehisce irregularly.