[trig.o.no.met.ric] also trig.o.no.met.ri.cal adj (1690): of, relating to, or being in accordance with trigonometry -- trig.o.no.met.ri.cal.ly adv
TRIGONOMETRIC
Meaning of TRIGONOMETRIC in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012