archipelagic
- a relating to or part of an archipelago
an archipelagic war
archeological
- a related to or dealing with or devoted to archaeology
archeozoic
- n the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
- s of or belonging to earlier of two divisions of the Precambrian era
archeozoic life forms
archesporial
- a of or relating to the cells in a sporangium that give rise to spores
archetypal
- s representing or constituting an original type after which other similar things are patterned
archetypal patterns
archetypical
- s representing or constituting an original type after which other similar things are patterned