bacillar vs rod-shaped

bacillar and rod-shaped both are adjectives.

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

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

Other synonyms of bacillar include bacillary, bacilliform, baculiform.

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