marked by a tendency to find and call attention to errors and flaws

at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass to sustain a chain reaction

characterized by careful evaluation and judgment

urgently needed; absolutely necessary

forming or having the nature of a turning point or crisis

being in or verging on a state of crisis or emergency

of or involving or characteristic of critics or criticism

an appraisal based on careful analytical evaluation

the smallest angle of incidence for which light is totally reflected

an appraisal based on careful analytical evaluation

the minimum amount (of something) required to start or maintain a venture

the minimum mass of fissionable material that can sustain a chain reaction

a crisis situation or point in time when a critical decision must be made

an essay or article that gives a critical evaluation (as of a book or play)

a state of critical urgency

a critical state; especially the point at which a nuclear reaction is self-sustaining

in a critical manner

a state of critical urgency