tetragen vs Group 14 element

tetragen and Group 14 element both are nouns.

Word	Noun	Adjective	Verb	Adverb
tetragen	Yes	No	No	No
Group 14 element	Yes	No	No	No

As nouns, tetragen and Group 14 element are synonyms defined as:

tetragen and Group 14 element: any chemical element that belongs to the carbon group.

Other synonyms of tetragen include carbon group element, crystallogen, tetrel.

tetragen (noun)	Group 14 element (noun)
any chemical element that belongs to the carbon group.	any chemical element that belongs to the carbon group.