attenuation

1. A gradual diminishing of strength. (countable, uncountable)
2. A reduction in the level of some property with distance, especially the amplitude of a wave or the strength of a signal. (countable, uncountable)
3. A weakening in the virulence of a pathogen or other microorganism. (countable, uncountable)
4. The tapering of a leaf etc to a fine point. (countable, uncountable)
5. A fabrication process in which a material is stretched out into a thin shape. (countable, uncountable)
6. The reduction of the active principles of medicines to minute doses. (countable, uncountable)
7. The proportion of sugar that is converted to ethanol by a yeast. (countable, uncountable)

الجمع attenuations