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John Langdon H., English physician, 1828-1896. See: Down syndrome.
Farlex Partner Medical Dictionary © Farlex 2012


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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


the soft, small feathers lacking BARBULES that cover the body of a bird and aid heat retention.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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.

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References in periodicals archive ?
Vonn, the downhill champion in Vancouver in 2010, is odds-on to regain her crown but is worth taking on with Italy's SOFIA GOGGIA.
Goggia won the women's downhill Wednesday at Jeongseon Alpine Center and Vonn earned bronze.
The weakness of the upper esophagial vein walls and motility disorders are also considered causes of downhill varices, but still, the etiology remains unknown.
The speed of the treadmill during the downhill walk was kept same as during an uphill walk, for each participant.
We proposed to widen the consultation and included the option that Downhills should remain a local authority school as well as the option to become an academy or become an academy with the Harris Federation.
10) Other star names in the men's downhill include the UK's Gee Atherton, Josh Bryceland and Steve Peat, American Aaron Gwin and Samuel Hill, of Australia.
The duo, whose previous two downhill races both yielded gold medals at a World Cup event in Tignes, did not even get a training run on Friday because the session was cancelled, and a crash curtailed a previous attempt.
The German's slalom time of 50.60 seconds was the second best in the field, behind only Austria's Michaela Kirchgasser, who was not in medal contention following a poor downhill.
Downhill skateboarding has gathered momentum in recent years and there's now a growing band of downhill demons in the UAE.
A group of winter sports enthusiasts got kitted up in fancy dress costumes and skied downhill into a pool of cold water, at an event in Georgia.
WHILE downhill skiing is still the most popular winter sport activity, snowboarding is fast catching up and those who ride boards will tell you that it's far more exciting.