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empirical

im-PIR-ih-kuhl /ɪmˈpɪrɪkəl/

adjectiveC1GRESATTOEFLIELTS

formalacademic

Based on, concerned with, or verifiable by observation or experience rather than theory or pure logic.

Empirical data or evidence is derived from direct observation or experimentation, making it a cornerstone of the scientific method. It contrasts with purely theoretical or abstract reasoning.

The story behind the word. The journey of 'empirical' starts with the ancient Greek word 'empeiria,' meaning 'experience.' This term was used to describe knowledge gained through direct observation and practice, particularly by physicians who learned from treating patients rather than from abstract philosophy. Over time, it evolved through Latin into English, retaining its core meaning of 'based on experience' rather than pure thought.

Word relationships

observational: Observational is very close, emphasizing direct watching, while empirical broadly covers all experience-based evidence.
experimental: Experimental specifically refers to evidence from experiments, which is a type of empirical evidence.
experiential: Experiential relates to personal experience, often subjective, whereas empirical implies objective, verifiable experience.

theoretical: Theoretical is based on abstract principles and ideas, not direct observation.
hypothetical: Hypothetical refers to something assumed for argument, not necessarily observed.

Word family

empiricism (noun): The theory that all knowledge is derived from sense-experience.
empiricist (noun): A person who believes in or practices empiricism.

Collocations

empirical evidence
empirical data
empirical research
empirical study
empirical findings

Example sentences

"The psychologist insisted on collecting empirical evidence through direct observation of children's behavior, rather than relying solely on parental reports." Scientific research relies heavily on empirical data.
"An empirical study on the effects of caffeine on memory found a statistically significant improvement in recall among participants." Many scientific fields are fundamentally empirical.

Memory hook

Think of 'EMPIRE' builders who rely on 'PRACTICAL' (empirical) experience to conquer new lands, not just theoretical maps. EMPIRE-ical: Based on experience.

When not to use

Do not use 'empirical' to describe something based solely on opinion, speculation, or unverified claims. It specifically refers to evidence gathered through senses or instruments.

Fun facts

The philosophical school of 'empiricism' (Locke, Hume) argues that all knowledge ultimately comes from sensory experience.