threshold trait

thresh·old trait

a trait that falls into natural groups that originate not in categorically distinct causes but in whether the outcome attains critical values; for example, gallstones may result from a categoric cause or from unusual levels of causal factors that themselves show no evidence of grouping.
Synonym(s): liminal trait

thresh·old trait

(thresh'ōld trāt)
A trait that falls into natural groups that originate not in categorically distinct causes but in whether the outcome attains critical values (e.g., gallstones may result from a categoric cause or from unusual levels of causal factors that themselves show no evidence of grouping).