See Also: Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
saddle(1)(dictionary)
Saddle(medicine)
saddle(2)(dictionary)
saddle bag(dictionary)
saddle(encyclopedia)
side-saddle(dictionary)
saddle 1, noun(dictionary)
saddle nose(medicine)

saddle embolism (medicine) and Z particle (sh)


saddle embolism (medicine)


saddle embolism


A straddling embolism at any vascular bifurcation, e.g., of the aorta which occludes both common iliac arteries.

Synonym: pantaloon embolism.


Z particle (sh)




Electrically neutral carrier of the weak force and the neutral partner of the electrically charged W particle.

It is nearly 100 times more massive than the proton and has a lifetime of only about 10-25 second. Z particles were first observed in 1983 by Carlo Rubbia and Simon van der Meer at CERN. Further studies have shown a natural variation in mass that is related to the particle's lifetime through the uncertainty principle. Measurements show that when Z particles decay to neutrino-antineutrino pairs (see pair production), they produce only three types of lightweight neutrino, indicating that there are only three sets each of leptons and quarks.