Sign in after copying to save bookmarks, recent words, and ad-reduction benefits.
﹒Events or occurrences that can be perceived, measured, or documented through direct observation or scientific instrumentation.
﹒Natural or physical happenings that provide empirical evidence and can be studied to formulate scientific theories.
﹒The scientist meticulously documented all observable phenomena during the course of the experiment.
﹒In physics, gravity is understood through its effects on various observable phenomena in the universe.
﹒The research team struggled to find a consistent theory that could explain all the observable phenomena they had recorded.
If the word feels off in actual usage, report it with one tap so we can review and improve it quickly.
Logged-in users see roughly 70% fewer ads. Save bookmarks and search more comfortably.
Sign inGoogle blocks sign-in inside in-app browsers. Open this page in an external browser like Chrome or Safari and sign-in will work right away.
Continue with Kakaoor, for Google sign-in, open an external browser:
Link copied! Paste it into your browser.Or tap the browser menu (⋯ or share) and choose “Open in another browser”.
No ads. More searches. Everywhere.
Cancel anytime in Google Play