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n.1.(Zool.) Any mollusk which has a shell composed of more than two pieces.
a.1.Having many valves.
2.(Zool.) Many-valved; having more than two valves; - said of certain shells, as the chitons.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Chong Lei, M.D., Ph.D., from the Fourth Military Medical University in China, and colleagues assessed whether administration of nitric oxide reduces the incidence of postoperative acute kidney injury and improves long-term kidney outcomes among 244 patients undergoing elective, multivalve replacement surgery (mostly due to rheumatic fever) requiring prolonged cardiopulmonary bypass.
There are silhouettes of gushing oil springs and fountains, multivalve oil wells resembling Christmas trees, moving wheels made of monster-ish legs, and forearms falling from the sky, all happening in a mystical terrain created with moving details of Sikander's gouaches.
There is no evidence for its prognostic benefit or use in multivalve disease.
Therefore, it is the duty of teachers to fine tune language in schooling practices to match children's varied needs in rural, urban, farm, high density and low density schools, thereby maximising their access to multivalve forms of knowledge.
But the majority of engines today are multivalve. You could have four or five valves cut into the top of each cylinder now, leaving much less room to fit a plug there.
The limitations of this approach are that the parametric relationship of inlet model curves and its surfaces is inexistence, and just only the local structure area can be adjusted, so that it restricts the design and development of innovative inlet port types, especially restraining the application and evolution of the multivalve technology on the traditional engine.
The 105ps 1.2 engine ensures it is a very useable unit which is easy to live with and not harsh or hard on the ears because it''s not a multivalve engine.
The same 1.8 multivalve engine goes into each, but while the lower powered unit produces 140bhp, the top model has an extra 50bhp - and not a turbocharger in sight.
FPT's industrial engine range features multivalve systems, fixed or variable geometry turbochargers, mehanical injection systems, high-pressure common rail systems or electronic control fuel injectors, as well as internal recirculation of oil vapor to prevent air emissions.
Baby boomers and Gen Xers alike hate to waste time--or energy--hence the recent surge in products that meet buyers' expectations quickly and efficiently Think tankless water heaters, pot-filler faucets, structured wiring, high-speed cable networks, and multivalve shower schemes, all of which can save a few precious seconds in a homeowner's busy day
Many servicepeople don't understand how to operate the multivalve, how much sand to put in the tank or when to backwash.