Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Having two or more atomic rings in a molecule.
from The Century Dictionary.
- Having many rounds, turns, or whorls, as a shell.
- In electricity, noting a system of electric distribution by alternating currents, in which the energy maxima of the flow of power of the different circuits overlap so as to give a total flow of power of constant intensity. This is the case in a symmetrical or hemisymmetrical polyphase system. See
polyphase . - In chem., containing more than one atomic ring in the molecule.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective chemistry Having two or more
rings ofatoms in themolecule . - noun Such a compound
Etymologies
Sorry, no etymologies found.
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Examples
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Sweden deserves mention, namely that certain polycyclic hydrocarbons initiating mouse tumors put a specific, antigenic mark on these, which persists despite repeated transplantation of the growths.
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You mention there the possibilities for discussion of several theoretically interesting questions concerning the forces of attraction in polycyclic systems.
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The study also suggests that the substances in black tattoo inks -- materials known as polycyclic aromatic hydrocarbons PAHs -- migrate into subjects' lymph nodes, which aid an individual's body in filtering out disease-causing organisms.
Glenn D. Braunstein, M.D.: Tattoos: Inks Raise New Health Concerns About Age-Old Designs M.D. Glenn D. Braunstein 2011
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The study also suggests that the substances in black tattoo inks -- materials known as polycyclic aromatic hydrocarbons PAHs -- migrate into subjects' lymph nodes, which aid an individual's body in filtering out disease-causing organisms.
Glenn D. Braunstein, M.D.: Tattoos: Inks Raise New Health Concerns About Age-Old Designs M.D. Glenn D. Braunstein 2011
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In their research, the investigators focused on a class of cancer-causing culprits found in cigarette smoke called polycyclic aromatic hydrocarbons, or PAHs.
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The study also suggests that the substances in black tattoo inks -- materials known as polycyclic aromatic hydrocarbons PAHs -- migrate into subjects' lymph nodes, which aid an individual's body in filtering out disease-causing organisms.
Glenn D. Braunstein, M.D.: Tattoos: Inks Raise New Health Concerns About Age-Old Designs M.D. Glenn D. Braunstein 2011
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The study also suggests that the substances in black tattoo inks -- materials known as polycyclic aromatic hydrocarbons PAHs -- migrate into subjects' lymph nodes, which aid an individual's body in filtering out disease-causing organisms.
Glenn D. Braunstein, M.D.: Tattoos: Inks Raise New Health Concerns About Age-Old Designs M.D. Glenn D. Braunstein 2011
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In their research, the investigators focused on a class of cancer-causing culprits found in cigarette smoke called polycyclic aromatic hydrocarbons, or PAHs.
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The oil contaminants of most health concern - potential cancer-causing substances called polycyclic aromatic hydrocarbons, or PAHs - show up in other everyday foods, too, such as grilled meat.
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The oil contaminants of most health concern – potential cancer-causing substances called polycyclic aromatic hydrocarbons, or PAHs – show up in other everyday foods, too, such as grilled meat.
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