outward features; "he enjoyed the solemn externals of religion"
happening or arising or located outside or beyond some limits or especially surface; "the external auditory canal"; "external pressures"
purely outward or superficial; "external composure"; "an external concern for reputation"- A.R.Gurney,Jr.
from or between other countries; "external commerce"; "international trade"; "developing nations need outside help"
coming from the outside; "extraneous light in the camera spoiled the photograph"; "relying upon an extraneous income"; "disdaining outside pressure groups"
inquire into; "the students had to research the history of the Second World War for their history project"; "He searched for information on his relatives on the web"; "Scientists are exploring the nature of consciousness"
attempt to find out in a systematically and scientific manner; "The student researched the history of that word"