Achilles' heel

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Achilles' heel

A weakness or vulnerability that can lead to permanent destruction or downfall. In Greek mythology, the hero Achilles was killed after being struck in the heel—the only weak spot on his body. Improper security measures were the failed company's Achilles' heel. I'm a good student, but I know I won't score high enough on the scholarship test because math is my Achilles' heel.
See also: heel

Achilles' heel

Fig. a weak point or fault in someone or something otherwise perfect or excellent. (From the legend of Greek hero Achilles, who had only one vulnerable part of his body, his heel; as an infant his mother had held him by one heel to dip him in the River Styx to make him invulnerable.) He was very brave, but fear of spiders was his Achilles' heel.
See also: heel

Achilles' heel

A fatal weakness, a vulnerable area, as in This division, which is rarely profitable, is the company's Achilles' heel. The term alludes to the Greek legend about the heroic warrior Achilles whose mother tried to make him immortal by holding the infant by his heel and dipping him into the River Styx. Eventually he was killed by an arrow shot into his undipped heel. [c. 1800]
See also: heel

an/somebody’s Achilles’ ˈheel

a hidden weakness or fault in somebody which may be used to harm them: His pride proved to be his Achilles’ heel.This expression is named after the Greek hero Achilles. When he was a small child, his mother dipped him into the river Styx, which meant that he could not be injured. She held him by his heel, which therefore was not touched by the water. Achilles died after being wounded by an arrow in the heel.
See also: heel

Achilles' heel

A vulnerable spot that leads to a downfall. According to Greek mythology, anyone who was immersed in the River Styx, which marked the boundary of the underworld, became invulnerable. Thetis dipped her young son Achilles in the river, but she held him by his heel. Because her hand covered that part of his body, the water did not touch it and it became his one vulnerable spot. Achilles, who grew to become a great warrior, died during the Trojan War when an arrow struck his heel. Even though it's located in the same part of the body, don't confuse “Achilles' heel” with “Achilles tendon,” which connects muscles in your lower leg to your heel bone.
See also: heel
References in periodicals archive ?
I worry and wonder if we have built an Achilles' heel into the system.
The loop is "like an Achilles' heel," says Fernandez.
Is that going to be an Achilles' heel through the tournament for the United States?
I had an Achilles' heel - I couldn't hit it very straight.
Search engines are an essential tool in the workplace, yet they can also be an Achilles' heel in corporate Web filtering policies.
David Sanders, the director of Critical Infrastructure Cyber Security, National Cyber Security Division at the Department of Homeland Security and his counterparts from the UK and Canadian governments in addition to an oil and gas industry expert will discuss "Automation Systems- An Achilles' Heel to our Critical Infrastructure.
The special teams continue to be an Achilles' heel and need more tweaking, especially on kickoff and kick returns.
Daily Forums featuring hot topics: Automation Systems - An Achilles' Heel to our Critical Infrastructure; Debunking the Myths: The Good, the Bad, and the Future of Outsourcing; and Sensors & Wireless in Homeland Security.
McGwire, 38, had four seasons ruined by injuries - an Achilles' heel and recently a Joe Namath knee.
Ovarian and breast cancer cells, like other malignant cells, may have an Achilles' heel after all.
More difficult to assess than physical damage and open to interpretation, IP represents an Achilles' heel that can be easily challenged.
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