lanthanum (iou) and mm virus (medicine)

lanthanum (iou)

lanthanum noun. M19.
[from Greek lanthanein lie hidden + -I)UM.]
A metallic chemical element, atomic no. 57, which is the first element of the lanthanide series. (Symbol La.)
lanthana noun lanthanum oxide, La2O3, a white solid L19.
lanthanite noun (Mineralogy) an orthorhombic hydrated carbonate of lanthanum and cerium, usu. occurring as colourless or pale pinkish or yellowish tabular crystals M19.
lanthanoid,
lanthanon nouns = LANTHANIDE M20.

mm virus (medicine)

mm virus

A strain of encephalomyocarditis virus, a species of cardiovirus, causing neurological disease in the mouse.

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