| van der Waals' forces | First postulated by van der Waals in 1873 to explain deviations from ideal gas behaviour seen in real gases; the attractive force's between atoms or molecules other than electrostatic (ionic), covalent (sharing of electrons), or hydrogen bonding (sharing a proton); generally ascribed to dipolar and dispersion effects, π-electrons, etc.; these relatively nondescript force's contribute to the mutual attraction of organic molecules. Synonym: London forces. (05 Mar 2000) |
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| reciprocal forces | In dentistry, force's whereby the resistance of one or more teeth is utilised to move one or more opposing teeth. (05 Mar 2000) |
| london dispersion forces | <chemistry> The forces that exist in nonpolar molecules that involve an accidental dipole that induces a momentary dipole in a neighbor. (09 Jan 1998) |
| London forces | First postulated by van der Waals in 1873 to explain deviations from ideal gas behaviour seen in real gases; the attractive force's between atoms or molecules other than electrostatic (ionic), covalent (sharing of electrons), or hydrogen bonding (sharing a proton); generally ascribed to dipolar and dispersion effects, π-electrons, etc.; these relatively nondescript force's contribute to the mutual attraction of organic molecules. Synonym: London forces. (05 Mar 2000) |
| dental health services | Services designed to promote, maintain, or restore dental health. (12 Dec 1998) |
| superior dental branches of superior dental plexus | Branches passing from the superior dental plexus to the roots of the teeth of the upper jaw. Synonym: rami dentales superiores plexus dentalis superioris. (05 Mar 2000) |
| inferior dental branches of inferior dental plexus | Branches passing from the inferior dental plexus to the roots of the teeth of the lower jaw. Synonym: rami dentales inferiores plexus dentalis inferioris. (05 Mar 2000) |
| adolescent health services | Organised services to provide health care to adolescents, ages ranging from 13 through 18 years. (12 Dec 1998) |
| ancillary services, hospital | Those support services other than room, board, and medical and nursing services that are provided to hospital patients in the course of care. They include such services as laboratory, radiology, pharmacy, and physical therapy services. (12 Dec 1998) |
| backup electricity, backup services | Power or services needed occasionally; for example, when on-site generation equipment fails. (05 Dec 1998) |
| marketing of health services | Application of marketing principles and techniques to maximise the use of health care resources. (12 Dec 1998) |
| maternal health services | Organised services to provide health care to expectant and nursing mothers. (12 Dec 1998) |
| centralised hospital services | The coordination of services in one area of a facility to improve efficiency. (12 Dec 1998) |
| mental health services | Organised services to provide mental health care. (12 Dec 1998) |
| child health services | Organised services to provide health care for children. (12 Dec 1998) |