1400–50; < Latin synōnymum < Greek synṓnymon, noun use of neuter of synṓnymos synonymous; replacing Middle English sinonyme < Middle French < Latin, as above (Source: dictionary.com)
Definitions of Synonymic
a word having the same or nearly the same meaning as another in the language, as happy, joyful, elated. A dictionary of synonyms and antonyms (or opposites), such as Thesaurus.com, is called a thesaurus.
a word or expression accepted as another name for something, as Arcadia for pastoral simplicity or Wall Street for U.S. financial markets; metonym.
Biology. one of two or more scientific names applied to a single taxon.
a word that means the same or nearly the same as another word, such as bucket and pail
a word or phrase used as another name for something, such as Hellene for a Greek
biology a taxonomic name that has been superseded or rejected
: one of two or more words or expressions of the same language that have the same or nearly the same meaning in some or all senses
: a word or phrase that by association is held to embody something (such as a concept or quality) a tyrant whose name has become a synonym for oppression
: one of two or more scientific names used to designate the same taxonomic group — compare homonym