| intramuscular |
within or into a muscle. |
| intransigence |
refusal to alter one's ideas or position in response to the wishes of others. |
| intransigent |
refusing to alter an idea or a position in response to others' wishes; uncompromising. [2 definitions] |
| intransitive |
in grammar, indicating a verb that does not take a direct object, such as "sit". [2 definitions] |
| intransitive verb |
a verb that is not followed by a direct object. In the sentence, "I ran for an hour," "ran" is an intransitive verb. |
| intraocular |
occurring within or surgically implanted into the eyeball. |
| intrastate |
within the limits of a state, esp. in the United States. |
| intrauterine |
existing or occurring within the uterus. |
| intrauterine device |
a small plastic or stainless steel coil or similar object inserted into the uterus to prevent conception; IUD. |
| intravenous |
existing within or entering through a vein or veins. |
| intrench |
entrench. |
| intrepid |
feeling or showing no fear; courageous; bold. |
| intricacy |
the state of being complex and involved in construction or aspect. [2 definitions] |
| intricate |
having many complexly interrelated parts, angles, or aspects; involved; elaborate. |
| intrigue |
to strongly draw the interest of; puzzle; fascinate. [7 definitions] |
| intrinsic |
being essential to or of the nature of a thing; inherent. |
| intrinsic factor |
a substance secreted by the stomach that promotes the body's ability to absorb vitamin B12. |
| intro- |
inward; into; in. |
| introduce |
to present (a person) to one or more people. [6 definitions] |
| introduction |
the act or process of introducing. [6 definitions] |
| introductory |
serving to introduce. |