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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 ?
Despite a lack of formal geology education, Downie has years of bush experience prospecting, line-cutting, and doing whatever was needed to stake and explore a claim, working with his father Iain.
Ground conditions are not likely to be a concern for Vibrato Valtat, with Downie adding: "He has run well on pretty desperate ground this season but we think he will be better on good ground.
Prior to this appointment, Downie served as MI Swaco with a wealth of experience gained from the financial services and oil and gas sectors.
Mr Downie said the UK's failure to make the most of organic matter like dog waste means we are playing catch-up in the use of biofuels.
Mr Downie said: "NetBop has always serviced clients throughout the UK and this expansion is the next step forward in cementing our service to a wider clientele.
Downie, who works as a part time model, was returning from a model casting with her mother Doris, when she headed to the city centre to catch a glimpse of the Prince.
For a 16-page summary and evaluation of a recent talk (March 24, 2009) given by Downie on behalf of the CIHR, see "Whose life is it anyways?
Randall and Downie maintain that these promises are far more than palliative care can deliver.
Patrick Downie, the licensee of the Downies Bar, on Prescot Road, Kensington, received Sky programming without a commercial agreement.
Physicist and popular science writer Downie presents 34 fun projects and experiments illustrating the principles and phenomena of science.
DON'T KISS ME: THE ART OF CLAUDE CAHUN AND MARCEL MOORE by Louise Downie, Editor (1597110256 $45.