Examlex
An atmosphere can escape a planet if the escape velocity is six times the average molecularspeed at that temperature.
Observational Learning
A learning process through watching the behaviors of others and the outcomes of those behaviors, not through direct experience.
Spark
Typically refers to a small but bright flash of fire or electricity, often used metaphorically to describe the initiation or inspiration of something.
Spontaneous Recovery
The reappearance of a previously extinguished response in the absence of further conditioning.
Extinct
A term describing a species, family, or larger group of organisms that no longer exists anywhere on Earth.
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