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John Langdon H., English physician, 1828-1896. See: Down syndrome.


1. Fine, soft, fluffy feathers forming the first plumage of a young bird and underlying the contour feathers in certain adult birds.
2. A soft, silky, or feathery substance, such as the first growth of a human beard.


Etymology: AS, adune, off hill
(of a computer) not operating as a result of malfunction or maintenance or for other reasons.


the soft, small feathers lacking BARBULES that cover the body of a bird and aid heat retention.

Patient discussion about down

Q. Can Down syndrome occur again? A few years ago, at the age of 32 my sister gave birth to a child that was diagnosed with Down syndrome. Now, at the age of 37 she's pregnant again. Can she have another baby with Down? Does the fact she has a baby with Down means she has higher risk for a second baby with Down?

A. - Older women especially after 35 years
- Previuosly child with Down Syndrome

Video link


Q. assessment of down syndrom

A. down syndrome is a very easy diagnosis - it just need a chromosome check and seeing 3 (instead 2) chromosomes number 21. -

Q. what does enlarged heart mean? is it linked to down syndrome? My wife is 16 weeks pregnant. we did a prenatal US and we were told that the baby hes an enlarged heart and that we are advised to do amniocentesis. A friend of mine had a baby with down syndrome, and he was toled that if they have done this procedure, the doctors could have find it on time and abort the pregnancy. Is there a clear connection between the enlarged hart and the fact that the doctor advised us to do this procedure to down syndrome?

A. Down syndrome is associated with several kinds of heart problems. those problems can cause an enlarged heart but usually it will appears as a post-natal complication.
The protocol that most obstetrics use is that if there is anything abnormal in the US there is an automatic referral to an amniocentesis procedure.
the US has a lot of false alarms, so they must check with the more accurate procedure.

More discussions about down
References in periodicals archive ?
Natural Resources Wales is warning the downpours could cause flooding across North Wales, with the rain quickly running off ground hardened by weeks of hot weather.
Heavy downpour is still affecting mainly European side of the city paralyzed daily life and traffic across the neighborhoods of European side.
Best be prepared for difficult driving conditions with a lot of surface water in the downpours.
That's apparently what happened in the lead up to this video: a freezing downpour followed by plummeting temperatures made the I-95 in New Jersey treacherous.
On Tuesday after the heavy downpour the roof of the house collapsed as result the family members were trapped by debris.
The Jiangxi provincial headquarters of flood control and drought relief said on Saturday that the downpour has caused flooding disasters in 122 townships in 13 counties and cities, affecting the lives of 229,000 residents, Xinhua reported.
The heaviest downpour was recorded in Kew Gardens, West London, where 18mm of rain fell in just one hour.
The Beijing city government said 77 bodies of victims from Saturday's downpour had been found in the city as of yesterday, 66 of whom have been identified.
Lucknow/ Kanpur/ Mumbai, July 5 ( ANI ): Heavy rains lashed several parts of Uttar Pradesh on Thursday, even as Mumbai continues to reel under the incessant downpour.
Playing as an escaped, morally ambiguous convict (whose story you can shape through choices in the game), Downpour also has one of the more intriguing storylines to have graced the series in recent years.
The downpour, which lasted for several hours, swamped main streets and forced the closure of the town's northern entrance.
A recent three-hour downpour dumped a near-record of 312 millimetres (12.