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.
The definition of a syllable is a part of a word that is pronounced with one uninterrupted sound. An example of syllable is kit in the word kitchen. a word or part of a word pronounced with a single, uninterrupted sounding of the voice; unit of pronunciation, consisting of a single sound of great sonority (usually a vowel) and generally one or more sounds of lesser sonority (usually consonants)