Fridericia

Fridericia is a term used in botany, medicine, and onomastics. In botany, Fridericia is a genus of flowering plants in the family Bignoniaceae. The genus comprises several species of tropical woody vines and lianas, distributed across the Americas. Taxonomic revisions have altered species assignments over time, and some species have been reclassified as knowledge of the group progresses.

In physiology and clinical practice, Fridericia's formula is a method for correcting the QT interval for heart rate in electrocardiography. The corrected QT interval, QTcF, is calculated as QT divided by RR to the one-third power (QTcF = QT / RR^(1/3)). It is used to compare QT intervals across different heart rates and is one of several correction methods; it tends to be less sensitive to heart rate than Bazett's formula at very high or very low rates.

As a surname, Fridericia originates from European naming traditions and is borne by individuals in various fields. The surname is relatively uncommon, and notable figures with the name have contributed to sciences and medicine, among other areas. Overall, Fridericia highlights how a single term can cross botanical taxonomy, clinical methodology, and personal naming in different contexts.