quack

Từ điển LongMan Dictionary

I. verb
COLLOCATIONS FROM OTHER ENTRIES
a duck quacks (=makes the sound ducks make)
▪ The ducks on the river started quacking.
EXAMPLES FROM CORPUS
▪ About a dozen mallard ducks were sleeping on the sand or quacking in a subdued manner under the dock.
▪ Clearly, enough investors think that Donald Duck will quack on into the twenty-second century!
▪ He gobbled, be quacked, grunted, swallowed syllables.
▪ One wing's shredded, one's flapping, it's quacking up a storm.
▪ She began a frantic quacking at the moment that Cyril got his two hands around her.
▪ The water is full of thrashing, quacking excitement.
▪ Young kids used to quack at us as we went past.
II. noun
EXAMPLES FROM OTHER ENTRIES
▪ Larry paid some quack over a thousand dollars to cure his insomnia.
▪ That quack doesn't know anything about treating heart disease.
EXAMPLES FROM CORPUS
▪ But when they open their mouths the same old hacking quacks come out, the same old self-serving screeds.
▪ If she mentioned paranoia, Buzz would insist that Elinor was the victim of a lot of quacks.
▪ There is always some magic remedy that will cure it, or some whizz-kid quack with a patent method.
▪ You may be considered an elitist or a quack.
III. adjective
EXAMPLES FROM OTHER ENTRIES
▪ a quack remedy for colds
EXAMPLES FROM CORPUS
▪ Many of those quack doctors were busy selling their own, often more dangerous diet cures.

quack

I. quack¹ /kwæk/ verb [INTRANSITIVE]
[date : 1600-1700; Origin : From the sound]
to make the sound that ducks make

II. quack² noun [COUNTABLE]
Sense 1: [date : 1800-1900; Origin : ⇨ quack¹]
Sense 2-3: [date : 1600-1700; Origin : quacksalver 'quack' (16-19 centuries), from early Dutch, probably from quacken 'to quack, talk' + salf 'cure']
1. the sound a duck makes

2. someone who pretends to be a doctor – used in order to show disapproval ⇨ quackery:
　 ▪ quacks selling weight-loss drugs

3. British English informal a doctor:
　 ▪ You’d better go and see the quack with that burn.
• • •
THESAURUS
▪doctor someone who treats people who are ill, who has completed a long course of study at medical school :
　 ▪ If you have bad chest pains, you should see a doctor.
▪GP British English a doctor who is trained in general medicine and who treats the people who live in a local area :
　 ▪ My GP told me that I must lose weight.
▪physician /fəˈzɪʃən, fɪˈzɪʃən/ formal especially American English a doctor :
　 ▪ the American physician, Dr James Tyler Kent
▪quack informal someone who pretends to be a doctor :
　 ▪ My father felt that people practicing alternative medicine were just a bunch of quacks.
▪the medical profession doctors and nurses considered as a group :
　 ▪ This view is widely accepted among the medical profession.
▪surgeon /ˈsɜːdʒən $ ˈsɜːr-/ a doctor who does operations in a hospital :
　 ▪ One of the world’s top heart surgeons performed the operation.
▪specialist a doctor with special knowledge about a particular illness, part of the body, or type of treatment :
　 ▪ The new drug is being tested by cancer specialists.
　 ▪ an eye specialist
▪consultant British English a very senior doctor in a hospital, with a lot of knowledge about a particular area of medicine :
　 ▪ The consultant said that he did not think it was cancer.
▪paramedic someone who has been trained to treat sick or injured people, especially at the scene of an accident :
　 ▪ Paramedics treated him for shock.
▪vet (also veterinarian especially American English) a doctor who treats animals :
　 ▪ We took the cat to the vet.
▪paediatrician British English, pediatrician American English a doctor who treats children who are sick
▪gynaecologist British English, gynecologist American English a doctor who treats medical conditions and illnesses that affect women’s bodies
▪obstetrician a doctor who deals with the birth of children
▪radiographer someone whose job is to take X-raysor to treat people using an X-ray machine

III. quack³ adjective [ONLY BEFORE NOUN]
relating to the activities or medicines of someone who pretends to be a doctor ⇨ quackery:
　 ▪ a quack remedy