regulation vs embryology

regulation and embryology both are nouns.

Word	Noun	Adjective	Verb	Adverb
regulation	Yes	Yes	No	No
embryology	Yes	No	No	No

regulation (noun)	embryology (noun)
the act of controlling or directing according to rule	the branch of biology that studies the formation and early development of living organisms
the act of bringing to uniformity; making regular
a principle or condition that customarily governs behavior
an authoritative command
(embryology) the ability of an early embryo to continue normal development after its structure has been somehow damaged or altered
the state of being controlled or governed

regulation (adjective)	embryology (adjective)
prescribed by or according to regulation