cyanamid vs cyanamide

cyanamid and cyanamide both are nouns.

Word	Noun	Adjective	Verb	Adverb
cyanamid	Yes	No	No	No
cyanamide	Yes	No	No	No

As nouns, cyanamid and cyanamide are synonyms defined as:

cyanamid and cyanamide: a weak soluble dibasic acid (the parent acid of cyanamide salts)

cyanamid (noun)	cyanamide (noun)
a weak soluble dibasic acid (the parent acid of cyanamide salts)	a weak soluble dibasic acid (the parent acid of cyanamide salts)
	a compound used as a fertilizer and as a source of nitrogen compounds