Analogues are drugs that have close structural resemblance and similar effects. For instance one could argue that naproxen (Aleve) is an analog of ibuprofen (Motrin/Advil). Most analogues are designed because true synthetic natural products are hard to make, or are not potent enough.
Definition of several. 1a : separate or distinct from one another federal union of the several statesb (1) : individually owned or controlled : exclusive a several fishery â compare common (2) : of or relating separately to each individual involved a several judgmentc : being separate and distinctive : respective specialists in their several fields.
LINK / CITE ADD TO WORD LIST. noun. The definition of a disease is an illness or sickness with specific, well-defined symptoms that affects a person, plant or animal. An example of a disease is cancer.isease. 1  any departure from health; illness in general. 2  a particular destructive process in an organ or organism, with a specific cause and characteristic symptoms; specif., an illness; ailment. 3  any harmful or destructive condition, as of society.