Threshold Cycle

**Semantic type:** Temporal Concept

**Definition:** The number of signal amplification cycles at which the signal reaches an intensity above the background signal.

**Synonyms:** - Cp Number - Crossing point Number - Ct - Ct - Ct Number - Cycle Threshold - Cycle Threshold - Cycle Threshold # - Cycle Threshold Number - Elbow Value - QUANTIFICATION CYCLE NUMBER - THRSHCYC - TOP Number - Take-off Point Number - Threshold Cycle Number