transmission


transmission
1. SYN: transfer. 2. The conveyance of disease from one person to another. 3. The passage of a nerve impulse across an anatomic cleft, as in autonomic or central nervous system synapses and at neuromuscular junctions, by activation of a specific chemical mediator that stimulates or inhibits the structure across the synapse. See neurohumoral t.. 4. In general, passage of energy through a material. [L. transmissio, a sending across]
- duplex t. the passage of impulses in both directions through a nerve trunk.
- horizontal t. t. of infectious agents from an infected individual to a susceptible contemporary, in contradistinction to vertical t..
- iatrogenic t. t. of infectious agents due to medical interference ( e.g., t. by contaminated needles).
- neurohumoral t. a process by which a presynaptic cell, upon excitation, releases a specific chemical agent (a neurotransmitter) to cross a synapse to stimulate or inhibit the postsynaptic cell. SYN: neurotransmission.
- transovarial t. passage of parasites or infective agents from the maternal body to eggs within the ovaries; commonly used to describe certain arthropods, to explain the ability of larvae of the next generation to transmit disease pathogens, as with the infection of larval mites or ticks with rickettsiae or viruses.
- transstadial t. passage of a microbial parasite, such as a virus or rickettsia, from one developmental stage (stadium) of the host to its subsequent stage or stages, particularly as seen in mites. SEE ALSO: transovarial t..
- vertical t. 1. t. of a virus ( e.g., RNA tumor virus) by means of the genetic apparatus of a cell in which the viral genome is integrated; 2. for infectious agents in general, t. of an agent from an individual to its offspring, i.e., from one generation to the next. Cf.:horizontal t..

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trans·mis·sion tran(t)s-'mish-ən, tranz- n an act, process, or instance of transmitting <\transmission of HIV> <synaptic \transmission>

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trans·mis·sion (trans-mishґən) [trans- + L. missio a sending] 1. a passage or transfer, as of a disease from one individual to another, or of neural impulses from one neuron to another. 2. the communication of genetic traits from parent to offspring.

Medical dictionary. 2011.

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  • transmission — [ trɑ̃smisjɔ̃ ] n. f. • XIVe, répandu XVIIIe XIXe; lat. transmissio I ♦ Fait, manière de transmettre, de se transmettre. 1 ♦ Action de transmettre (1o). Transmission d un bien, d un droit à une autre personne. ⇒ cession. La transmission des… …   Encyclopédie Universelle

  • Transmission — is the act of passing something on.Specifically, it may refer to:*Transmission (mechanics), a gear system transmitting mechanical power, as in a car *Transmission (telecommunications), the act of transmitting messages over distances *Transmission …   Wikipedia

  • transmission — trans‧mis‧sion [trænzˈmɪʆn ǁ træns ] noun [countable, uncountable] the process of sending out electrical signals by radio, telephone, or similar equipment: • This feature enables the machine to recognize whether an incoming call is a voice or… …   Financial and business terms

  • Transmission — Transmission …   Википедия

  • Transmission — (lat. trans „hinüber“ und mittere „schicken“) steht: in der Technik für einen Übertrager bzw. Übersetzer, siehe Übersetzung (Technik) im Maschinenbau für ein historisches Riemengetriebe, siehe Transmission (Maschinenbau) in der Wellenlehre für… …   Deutsch Wikipedia

  • Transmission — Trans*mis sion, n. [L. transmissio; cf. F. transmission. See {Transmit}.] 1. The act of transmitting, or the state of being transmitted; as, the transmission of letters, writings, papers, news, and the like, from one country to another; the… …   The Collaborative International Dictionary of English

  • transmission — trans·mis·sion /tranz mi shən, trans / n: an act, process, or instance of transmitting Merriam Webster’s Dictionary of Law. Merriam Webster. 1996. transmission …   Law dictionary

  • Transmission — (v. lat. Transmissio), 1) so v.w. Übersendung, Überlieferung; daher T. actor um, so v.w. Actenversendung; 2) (T. hereditatis), im Römischen Erbrecht ein Fall, in welchem gegen die Regel, daß nur derjenige Erbe werden kann, welchem die Erbschaft… …   Pierer's Universal-Lexikon

  • Transmission — (lat.), im gemeinen Rechte der Übergang des Rechts zum Erwerb einer Erbschaft nach dem Tode des Berechtigten, der es auszuüben unterließ, auf eine andre Person. Nach dem Bürgerlichen Gesetzbuch kann von T. im eigentlichen Sinne nicht mehr… …   Meyers Großes Konversations-Lexikon

  • Transmission — Transmission, die Kraftleitungs und Verteilungsanlage von einer Kraftmaschine zu den Arbeitsmaschinen, insbesondere die Anlage der Wellen mit Lagern, Kupplungen, Seil und Riemscheiben, Zahnrädern, Schmiervorrichtungen u.s.w …   Lexikon der gesamten Technik

  • Transmission — (lat.), Übersendung; Übertragung, im Maschinenwesen eine Zusammenstellung von Vorrichtungen (Zwischenmaschinen, Zwischengeschirr) zur Übertragung und Verteilung der Arbeitskraft von den Kraftmaschinen zu den Arbeitsmaschinen; insbes. die Anlage… …   Kleines Konversations-Lexikon


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