Observable
ɒbˈzɜːvəbl̩
Definitions
2 meaningsCapable of being noticed or perceived, especially by the senses.
ɒbˈzɜːvəbl̩
Capable of being seen, noticed, or perceived.
The changes in the weather were easily observable.
💡 Simply: Imagine something so clear and obvious, like when you see your friend is sad. The sadness is observable because you can tell by their face and body language!
👶 For kids: Something you can see or notice.
More Examples
The results were observable in the experiment.
Astronomers study observable universe, to understand its origin.
How It's Used
"Scientists use telescopes to study observable phenomena in space."
"Her improvement in performance was easily observable by her coach."
A quantity or property that can be measured or observed.
ɒbˈzɜːvəbl̩
Something that can be observed or measured.
In quantum mechanics, an observable is represented by a Hermitian operator.
💡 Simply: It’s like the actual thing you see or find out when you're doing something. It could be the number of students in your class or the amount of rain that fell outside.
👶 For kids: Something you can measure or see results of, like how many toys are in the box.
More Examples
The observable changes in the patient's condition were carefully documented.
The success of the new policy was measured by several observables.
How It's Used
"An observable in quantum mechanics is a measurable property of a system."
Synonyms
From Middle English observabile, from Old French observable, from Latin observabilis, from observare ('to observe').
The word has been used in scientific and philosophical contexts since the 17th century, emphasizing empirical observation.
Memory tip
Think of a clear night sky filled with observable stars and planets.
Practice
Word Origin
Root: observare