Freebase(0.00 / 0 votes)Rate this definition: Thistle. Thistle is the common name of a group of flowering plants characterised by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Prickles often occur all over the plant â on surfaces such as those of the stem and flat parts of leaves.
Men's Health. Shock treatment may improve erectile dysfunction. An experimental therapy known as low-intensity shock wave treatment might improve erectile dysfunction, particularly for men with only mild to moderate sexual difficulties, a research review suggests.
What is erectile dysfunction (ED)? Erectile dysfunction is a condition in which a man is unable to get or keep an erection firm enough for sexual intercourse. ED is present when a man. can get an erection sometimes, though not every time. can get an erection, yet it does not last long enough for sexual intercourse. is unable to get an erection at any time.