See Also: Fragile X chromosome(health)
fragile X chromosome(medicine)
chromosome fragile sites(medicine)
radiate(medicine)
radiate(1)(dictionary)
radiate(dictionary)
fragile(dictionary)
fragile(dictionary)
radiate(2)(dictionary)
fragile site(medicine)

radiate(2) (iou) and fragile X chromosome (medicine)


radiate(2) (iou)



radiate verb. E17.
[Latin radiat- pa. ppl stem of radiare furnish with or emit rays, from radius ray: see -ATE3.]
I. verb intrans.
1. Spread from or as from a centre; diverge from a central point. E17.
E. Hemingway Lines..radiated from..each eye. A. Toffler Consequences of..events radiate..around the world.
b. Converge to or towards a centre. rare. M19.
c. Biology. Of an animal or plant group: diversify or spread into new habitats. E20.
2. a. Emit rays of light; shine brightly. M17.
b. Orig., emit rays of heat. Now more widely, emit energy of any kind in the form of rays or waves. M19.
3. Of light or heat: issue in rays. E18.
II. verb trans.
4. Illuminate (lit. & fig.). rare. E17.
5. a. Emit (light or heat) in rays. More widely, emit (energy of any kind) in the form of rays or waves. (Foll. by away.) L18.
Nature Stars radiate their heat away.
b. fig. Transmit as from a centre; exude an aura or atmosphere of (love, happiness, power, etc.). E19.
D. Fraser He radiated confidence. A. Lee She radiated a fresh scent.
c. Transmit (Radio waves); broadcast. E20.
radiating adjective (a) that radiates; (b) characterized by radiation: E18.
radiature noun (rare) (an instance of) radiation E18.

fragile X chromosome (medicine)


fragile x chromosome
X chromosome with a fragile site associated with a frequent form of mental retardation. The fragile X chromosome was first sighted by Herbert A. Lubs in 1969. The fragile X is also called FRAXA (the second A signifies it was the first FRAgile site found on the X chromosome). It is due a trinucleotide repeat (a recurring motif of 3 bases) in the DNA at that spot.