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chain reaction

A series of events wherein the outcome of each instance specifically influences or causes the next. The phrase comes from the occurrence of such reactions in chemistry and physics. Deciding to take a course studying James Joyce in college set up a chain reaction that ultimately led me to move to Ireland. When one bookshelf fell, it caused a chain reaction that knocked over all the rest.
See also: chain, reaction

gut reaction

A reaction to a situation based on a person's instinct and feelings, rather than on a logical analysis. My initial gut reaction was that the merger would result in a drop in stock prices, but the opposite turned out to be true.
See also: gut, reaction

knee-jerk reaction

Fig. an automatic or reflex reaction; an immediate reaction made without examining causes or facts. With one of his typical knee-jerk reactions, he said no immediately, citing some moral argument that no one understood.
See also: reaction

chain reaction

A series of events in which each influences or gives rise to the next event, as in If one person collects substantial damages by suing a company, you can expect a chain reaction of such lawsuits . The term originated in the physical sciences, first (1920s) chemistry and later (1940) physics; in the latter it denotes a process of nuclear fission. By the 1940s it had been transferred to more general use.
See also: chain, reaction

a gut reaction

COMMON A gut reaction is a reaction that you have immediately and strongly, without thinking about something or being aware of your reasons. At first my gut reaction was to never write again. My heart's loyal to the party but my gut reaction is to vote against the bill.
1. If you describe a task or activity as gut-busting, you mean it is very hard work. It would be hard work, he predicted — back-breaking, gut-busting, unbelievably hard work.
2. You can use gut-busting to describe a very large amount of food. Walker set a record by eating a gut-busting 32 pies.
See also: gut, reaction

gut reaction (to something)

n. a basic and immediate response to something. Her gut reaction to the plan is basically a good one.
See also: gut, reaction, something

gut reaction

See also: gut, reaction
References in periodicals archive ?
Clinical history of allergic reactions after honeybee stings, and positive result of skin prick test, or serum specific IgE (sIgE) to honeybee venom present diagnosis.
So far, few clinical studies have been done on lepra reactions with its correlation with clinical and histopathological features.
Conclusions: The reaction comprises a successful example of refocusing the Leuckart reaction towards the predominant formation of the tertiary products.
Common EasySampler applications include sampling reactions for impurity profiling, product formation, by-product formation, reaction progress by offline analysis and yield.
In this study, auditory and visual reaction time tests were performed in order to test the simple and choice reaction time.
Type A reactions are ordinary reactions which can be observed in healthy individuals and which are related with the pharmacological effect of the drug and the dose administered.
Anaphylactic reactions typically occur after multiple exposures to a drug: the first exposure primes the immune system, and then each successive exposure increases the body's defensive response.
Although tryptase levels in general rise to higher levels in an anaphylactic reaction as opposed to an anaphylactoid reaction, high levels can also be seen in anaphylactoid reactions (5).
The mean ages of patients with Type 1, Type 2 and mixed reactions were 42.
As one of the world's largest reaction collections, the SPRESI database brings together a high quality collection of structures, reactions, and properties abstracted from leading journals and patents," said Dr.
All the regulatory organizations mandate that hospitals, in conjunction with transfusion services, develop the policies for recognition, reporting, evaluation, and management of transfusion reactions with proper written documentation and maintenance of such records.
b) raise questions provoked by reactions in the thread [Queries]; or
About a quarter of patients treated develop extreme allergic reactions to antibodies and other substances present in the host animal's serum.
A simple screening approach to reduce abacavir hypersensitivity reactions.
Indoor chemistry is defined as reactions involving indoor pollutants, occurring either in the gas phase or on surfaces.