implantation vs placement

implantation and placement both are nouns.

Word	Noun	Adjective	Verb	Adverb
implantation	Yes	No	No	No
placement	Yes	No	No	No

As nouns, placement is a hypernym of implantation; that is, placement is a word with a broader meaning than implantation:

Other hypernyms of implantation include emplacement, locating, location, position, positioning.

implantation (noun)	placement (noun)
the act of planting or setting in the ground	the act of putting something in a certain place
a surgical procedure that places something in the human body	contact established between applicants and prospective employees
(embryology) the organic process whereby a fertilized egg becomes implanted in the lining of the uterus of placental mammals	the spatial property of the way in which something is placed