| isoprene |
a colorless, volatile, liquid compound distilled from raw rubber or manufactured synthetically, used mainly to make synthetic rubber. |
| isosceles |
of a two-dimensional figure with straight sides, having two equal sides. |
| isosceles triangle |
a triangle with two sides that are equal in length. |
| isotherm |
a line on a weather map or chart that connects all points on the earth's surface that have the same average temperature over a specified period, or the same temperature at a given time. |
| isothermal |
of, related to, or designating equal temperatures or changes occurring at constant temperatures. [3 definitions] |
| isotonic |
equal in tension. [2 definitions] |
| isotope |
any of two or more atoms that have the same number of protons but differ in the number of neutrons, or that have the same atomic number but different atomic weights. (Cf. isobar.) |
| isotropic |
having physical properties, such as heat conductivity or growth, that are the same along any axis of measurement. |
| ISP |
abbreviation of "internet service provider," an organization that provides internet access and related services such as email accounts. |
| Israel |
a Middle Eastern republic, formed as a Jewish state by action of the United Nations in 1948. [2 definitions] |
| Israeli |
a native or citizen of modern Israel. [2 definitions] |
| Israelite |
a member of the Hebrew people, esp. of Biblical times. [2 definitions] |
| Issei |
(sometimes l.c.) a first-generation Japanese immigrant to the United States or Canada. (See Kibei, Nisei, Sansei.) |
| issuance |
the act or process of issuing. |
| issue |
the act or process of sending or coming from a particular source. [10 definitions] |
| issueless |
combined form of issue. |
| -ist |
one who does, makes, or handles. [3 definitions] |
| Istanbul |
a Turkish city at the entrance to the Black Sea; formerly Byzantium and Constantinople. |
| isthmian |
of or relating to an isthmus. [3 definitions] |
| isthmus |
a narrow strip of land connecting two larger land masses and bordered on its long sides by water. [2 definitions] |
| -istic |
of, relating to, or having the characteristics of. |