Consisting of one cell only. Some organisms, such as bacteria, are unicellular. Unicellular is in contrast to multicellular.
Having one horn, or being horn shaped. For example, the uterus is normally unicornuate.
Having, or relating to, one side. For example, a unilateral rash is one that is only on one side of the body.
1) Having produced only one offspring. Also called primiparous. 2) Producing only one offspring at a time. See also multiparous.
- Unique identifier reporting
In public health, a system that uses information such as the person’s birth date and part of their identification number (in the U.S., the social security number) to create a unique code that is reported instead of a name. It is an alternative to named reporting that provides some of the surveillance benefits of reporting […]
- Unit, international (IU)
An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used for the fat-soluble vitamins (such as vitamins A, D and E) and certain hormones, enzymes, and biologicals (such as vaccines). The definition of an international unit (IU) is generally arbitrary, technical, and eminently forgettable. For example, an […]