from The American Heritage® Dictionary of the English Language, 4th Edition
- A river of southwest Asia rising in eastern Turkey and flowing about 1,850 km (1,150 mi) southeast through Iraq to the Euphrates River. It was a major transportation route in ancient times.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A river in Southwest Asia flowing 1,150 miles east-southeast from Turkey through Iraq. It forms the eastern edge of classical Mesopotamia. It unites with the Euphrates River to form the Shatt-al-Arab before flowing into the Persian Gulf.
from The Century Dictionary and Cyclopedia
- n. A genus of Felidæ, or section of Felis, based on the tiger, as T. regalis.
- n. An obsolete constellation where Vulpecula now is, first found in the planisphere of Bartsch, 1624, and recognized for more than a century following.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an Asian river; a tributary of the Euphrates River
From Ancient Greek Τίγρις (Tigris), from Old Persian 𐎫𐎡𐎥𐎼𐎠 (Tigrā), from Elamite ti-ig-ra, from Sumerian idigna, literally ‘fast as an arrow’, because the Tigris is rough and fast flowing. Compare Middle Persian Arvand ‘Tigris’, literally ‘swift’ (cf. Avestan -aurvant). (Wiktionary)