Dictionary mistake goes unnoticed for 99 years
Those who swear by the dictionary for uses of words may need to cross check as the meaning explained in the bible of lexicon may not be error free.
Hughes claims he has discovered that the dictionary's definition of the word "siphon" has been incorrect since 1911.
The definition in the Oxford dictionary and many other dictionaries stated that atmospheric pressure was the force behind a siphon. But in fact it is the force of gravity at work.
"It is gravity that moved the fluid in a siphon, with the water in the longer downward arm pulling the water up the shorter arm," Hughes was quoted as saying by The Sydney Morning Herald.
Hughes alerted the dictionary's revision team, which had just completed revising words beginning with the letter "R".
"I thought, 'Oh good, just in time,' because S is next," he said.
The physicist discovered the error after viewing an enormous siphon in South Australia, transferring the equivalent of 4000 Olympic swimming pools from the Murray River system into the depleted Lake Bonney.
"I thought this example would make a great education paper ... but in my background research I discovered there was much contention about the definition of the word 'siphon'," Hughes said.
"I found that almost every dictionary contained the same misconception that atmospheric pressure, not gravity, pushed liquid through the tube of a siphon".
The dictionary's review team has agreed to re-examine the definition.
Hughes is now determined to set the record straight, and says the issue should not be taken lightly.
"We would all have an issue if the dictionary defined a koala as a species of bear, or a rose as a tulip," said Hughes, who has now turned his attention towards dictionaries in other languages.
"I would like to know if the siphon misconception exists in dictionaries in other languages, and also if there are incorrect definitions of siphon in school text books," he added.