datum
scientific theory
empirical research
a posteriori
evidentially
espial
to all appearances
preobservational
observationalist
observandum
evidentness
observationally
discovered
epexegesis
observed
evidence
ascertained
observational
manifest
apparent
foretest
patent
observedly
plain
revealing
palpable
evident
unmistakable
authority
preperception
through empirical observation
empirically
observable
by trial and error
paper
reading
construe
provenantial
testament
evidently
heteronomy
observance
oogamously
distinguishment
postobservation
prospicience
foresightfully
foreseeingly
preobservation
observing