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).
If your passport is such that you are allowed to stay for 90 days, the validity of your passport must extend at least 90 days beyond the 90th day, or a total of 180 days from the date you enter Turkey.Note that it doesn't matter how long you intend to stay in Turkey, it matters how long you are allowed to stay.egulations published by the Turkish Ministry of Foreign Affairs state that foreign visitors to Turkey with valid passports are allowed to enter the country and to stay for a limited number of days (90 days for many visitors, but the number of days varies by country and passport).