directrix (dÉªËrÉktrÉªks; daÉª-) n. 1. (Mathematics) geometry a fixed reference line, situated on the convex side of a conic section, that is used when defining or calculating its eccentricity. 2. (Professions) a directress [C17: New Latin, feminine of director] diâ¢recâ¢trix (dÉªËrÉk trÉªks, daÉª-)
e-Visa [edit]. Turkish e-visa can be obtained prior to arrival or on arrival (for a higher cost). Citizens of these countries are eligible to apply for a multiple entry e-Visa which allows to stay up to 90 days (unless otherwise stated):1  Antigua and Barbuda. 2  Armenia #. - Countries whose citizens are allowed to enter Turkey with their expired passports (up to 5 years). 3 - Allowed to enter Turkey with their passports or ID cards expired within the last year. Turkish e-visa can be obtained prior to arrival or on arrival (for a higher cost).
Applicants obtain their Turkish visa electronically, the e-Visa application can be submitted online, and the e-Visa itself will be returned via email. E-Visa is valid for tourism or business travel to Turkey.For other purposes such as work or study, a traditional visa application can be submitted through Travisa Passport and Visa Service.he Turkish e-Visa is issued electronically; it is not necessary to submit original passport or other documents for processing. Simply complete and submit Travisa's online request form and the Turkey e-Visa can be processed within approximately 24 hours or less.