Meaning: The ratio of the output to the input of any system. Classified under: Nouns denoting relations between people or things or ideas. Hypernyms (efficiency is a kind of...): ratio (the relative magnitudes of two quantities (usually expressed as a quotient))
uk â /ËÃ¦n.tiËsiË.dÉnt/ us â /ËÃ¦n.tÌ¬ÉËsiË.dÉnt/. âº formal someone or something existing or happening before, especially as the cause or origin of something existing or happening later: Charles Babbage's mechanical calculating engines were the antecedents of the modern computer. Many people feel a great curiosity to find out about their antecedents. âº specialized language a word or phrase that a pronoun refers back to: In the sentence He picked a book off the shelf and handed it to Sally, book is the antecedent of it.
1. an event, circumstance, etc, that happens before another. 2. (Grammar) grammar a word or phrase to which a pronoun refers. In the sentence People who live in glass houses shouldn't throw stones, people is the antecedent of who. 3. (Logic) logic the hypothetical clause, usually introduced by if, in a conditional statement: that which implies the other.