tract

B2 · Upper Intermediate Countable noun Medicine Technical

n. a system of connected organs in the body that have a specific job.

n. a system of connected organs and structures that perform a collective physiological function.

“Drinking plenty of water is good for your digestive tract.”

“The patient was diagnosed with an infection of the upper respiratory tract, requiring a course of targeted antibiotics.”

C1 · Advanced Countable noun Formal

n. a short piece of writing, usually a booklet, that explains a religious or political idea.

n. a brief treatise or pamphlet, typically one used for religious or political persuasion.

“He spent his weekends handing out religious tracts on the street corner.”

“The library archives contain several radical political tracts published during the late eighteenth century that influenced the revolutionary movement.”

C2 · Proficiency Uncountable noun Literary · Archaic

n. a long period or stretch of time.

n. a protracted or continued duration of time.

“In the long tract of time, many ancient cities have been forgotten.”

“The poet reflects on the vast tract of years that have passed since he last visited his childhood home.”