Betacoronavirus the Latin “corona” meaning crown or halo, referring to their image under electron microscopy of crown-like spikes on their surface similar to the solar corona. This morphology is created by the viral spike (S) peplomers, which are proteins that populate the surface of the virus and determine host tropism. The order Nidovirales is named for the Latin nidus, which means nest. It refers to this order’s production of a 3' co-terminal nested set of subgenomic mRNA's during infection. Betacoronavirus Betacoronaviruses are one of four genera of coronaviruses of the subfamily "Coronavirinae" in the family "Coronaviridae", of the order "Nidovirales". They
Halo (religious iconography) the Middle Ages". This, by what the OED calls a "strange blunder", derived the word from the Latin "aura" as a diminutive, and also defined it as meaning a halo or glory covering the whole body, whilst saying that "nimbus" referred only to a halo around the head. This, according to the OED, reversed the historical usage of both words, but whilst Didron's diktat was "not accepted in France", the OED noted it had already been picked up by several English dictionaries, and influenced usage in English, which still seems to be the case, as the word "nimbus" is mostly