observable

/əb'zə:vəbl/

Thân thiện

A clear change in the patient's mood was observable to the doctor.

Definition

1. 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.

Học thuật

Adjective

1. capable of being seen or noticed
   • a discernible change in attitude
   • a clearly evident erasure in the manuscript
   • an observable change in behavior

Từ đồng nghĩa

• discernible
• evident