Down's syndrome
English edit
Alternative forms edit
Etymology edit
Named after John L.H. Langdon-Down (1828–1896), an English physician who described it in the late 1800s. The term was first used in 1961.
Proper noun edit
- (chiefly British, Canada) Condition caused by a chromosomal deficiency
Usage notes edit
More often known as Down syndrome in the US, and rarely so in the UK.
Synonyms edit
- Down's, Down’s (informal)
- trisomy 21
Translations edit
condition caused by chromosomal deficiency — see Down syndrome