What does tert stand for?

Tertiary - Also, t - Chemistry

Tertullian - 160-240AD - Classical studies (OCD)

Telomerase Reverse Transcriptase - An enzyme

Tertiary - Period, era, or system - Geology

Tertius - Third - Latin

Test & evaluation, Educational, R&D & Tactical missions (SAUS)

Test and Evaluation, Educational, R&D- Research and Development and Tactical Missions (MLEX)

Total Engine Running Time (SAUS)

Tracking/Erosion Resistance Tester