rod-shaped vs bacillar

rod-shaped and bacillar both are adjectives.

Word	Noun	Adjective	Verb	Adverb
rod-shaped	No	Yes	No	No
bacillar	No	Yes	No	No

As adjectives, rod-shaped and bacillar are synonyms defined as:

Other synonyms of rod-shaped include bacillary, bacilliform, baculiform.

rod-shaped (adjective)	bacillar (adjective)
formed like a bacillus	relating to or produced by or containing bacilli
resembling a rod	formed like a bacillus