Achilles tendon; calcaneal tendon
Anatomical term for the tendon at the back of the ankle.
I tore my Achilles tendon.
Figurative use for a person's or system's most vulnerable spot.
His Achilles' heel is that he is too kind.
I injured my Achilles tendon during the match.
He won the match with a strategy that targeted his opponent's weak point.
He ruptured his Achilles tendon on landing from a jump.
Let's stretch our Achilles tendons well before exercising.