Definición de visna en inglés:


Silabificación: vis·na
Pronunciación: /ˈvisnə


Veterinary Medicine
  • A fatal disease of sheep in which there is progressive demyelination of neurons in the brain and spinal cord, caused by a virus.
    Más ejemplos en oraciones
    • It is a voluntary scheme with over 2800 flocks that have been blood tested and are accredited free of Maedi visna.
    • We conclude that sheep sera have a visna virus inhibiting factor and hypothesise that VIF inhibits early spread of visna virus in inoculated sheep and may be involved in initiating the persistent infection.


1950s: from Old Norse, 'to wither'.

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