observable
/əb'zə:vəbl/
Definition
- Adjective:
- Capable of being seen or noticed; perceptible: Something that can be observed, detected, or perceived through the senses or careful attention.
- Worthy of note; significant: Something that is noticeable or remarkable enough to be worthy of attention or comment.
Usage Examples
- Adjective:
- There was an observable difference in the plant's growth after using the new fertilizer.
- The scientist recorded all observable phenomena during the experiment.
- Her anxiety was observable in her body language.
Advanced Usage
- In scientific contexts: Often used to describe phenomena, data, or effects that can be empirically detected and measured.
- The theory makes predictions about observable events in the universe.
- In behavioral studies: Used to describe actions, reactions, or traits that can be witnessed and documented.
- The study focused on observable behaviors rather than reported feelings.
Variants and Related Words
- Observe (verb): To notice or perceive something and register it as being significant.
- Observation (noun): The action or process of observing something or someone carefully or the statement of something observed.
- Observably (adverb): In a way that can be observed.
- The temperature changed observably over the course of the day.
Synonyms
- Perceptible: Able to be seen or noticed.
- Discernible: Able to be recognized or understood.
- Noticeable: Easily seen or noticed; clear or apparent.
- Evident: Plain or obvious; clearly seen or understood.
Antonyms
- Unobservable: Not able to be observed.
- Imperceptible: So slight, gradual, or subtle as not to be perceived.
- Invisible: Unable to be seen.
Related Phrases
- Directly observable: Something that can be seen or measured without inference.
- The color of a liquid is directly observable.
- Observable universe: (A compound term in cosmology) The region of space from which light has had time to reach Earth since the beginning of the cosmological expansion.
- This is a separate compound term and not a usage of the adjective 'observable' alone.
Adjective
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capable of being seen or noticed
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a discernible change in attitude
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a clearly evident erasure in the manuscript
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an observable change in behavior
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