a person who buys goods from the producer and resells them to the retailer or consumer. 2. a person who acts as an intermediary. [1785â95] Thesaurus Antonyms Related Words Synonyms Legend: Switch to new thesaurus . Noun: 1. middleman - someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers. jobber, wholesaler
Mechanism (biology) In the science of biology, a mechanism is a system of casually interacting parts and processes that produce one or more effects. Scientists explain phenomena by describing mechanisms that could produce the phenomena. For example, natural selection is a mechanism of biological evolution; other mechanisms of evolution include genetic drift, mutation, and gene flow. In ecology, mechanisms such as predation and host-parasite interactions produce change in ecological systems. In practice, no descript
trap (plural traps) A machine or other device designed to catch (and sometimes kill) animals, either by holding them in a container, or by catching hold of part of the body. I put down some traps in my apartment to try and deal with the mouse problem.