| irritated |
annoyed or made angry. [2 definitions] |
| irritating |
causing irritation; vexing; inflammatory. |
| irritation |
the act of irritating, or that which irritates. [3 definitions] |
| irrupt |
to burst in suddenly or forcefully. [2 definitions] |
| IRS |
abbreviation of Internal Revenue Service, the US government agency responsible for administering and enforcing federal tax laws and collecting federal taxes. |
| Is. |
abbreviation of "island" or "islands," or "isle" or "isles" (used in a proper name). |
| is |
3rd person present sing. of be. |
| Isaac |
according to the Old Testament, the son of the patriarch Abraham and the father of Jacob and Esau. |
| Isaac Newton |
an English philosopher and mathematician who formulated the laws of gravity (b.1642--d.1727). |
| isagoge |
an introduction, as to a field of scholarly study or research. |
| Isaiah |
a major Hebrew prophet of the eighth century B.C. [2 definitions] |
| ischemia |
a localized stoppage of blood supply caused by a blockage in the bloodstream. |
| ischium |
the lowest of the three sections of either side of the pelvic bone, on which the body is supported when sitting. |
| -ise |
condition, quality, or function. |
| -ish |
belonging or pertaining to; of; from. [4 definitions] |
| Ishmael |
according to the Old Testament, an illegitimate son of Abraham who was sent into exile with his mother Hagar and who is venerated by Arabs of Islam as their ancestor. |
| Ishmaelite |
a member of a tribe considered to be descended from Ishmael and the progenitor of the Arab peoples. [2 definitions] |
| Ishtar |
the Assyrian and Babylonian goddess of love, fertility, and later, war. |
| isinglass |
a clear gelatin obtained from the air bladders of fish, esp. sturgeon. [2 definitions] |
| Isis |
in Egyptian mythology, the goddess of fertility. |
| Islam |
a monotheistic religion based on the teachings of the prophet Muhammad as set forth in the Koran. [3 definitions] |