In general, having analogy; corresponding (to something else) in some particular or particulars, while differing in others; bearing some resemblance or proportion: sometimes loosely used for similar.Specifically In chem., closely alike, but differing in some degree as to each of the more prominent characters.In botany, resembling in form but not in plan of structure.In biology, similar physiologically but not anatomically; like in function but not in structure: the opposite of homologous. See analogy, 5.In logic, from Albertus Magnus down to modern writers, applied to terms which are homonymous or equivocal in a special way, namely, those in which the identity of sound is not accidental, but is based upon a trope or upon some other reason.In all senses used with to, sometimes with. Synonyms Correspondent, similar, like.