A cancer in which the cells are very immature and “primitive” and do not look like cells in the tissue from it arose. As a rule, an undifferentiated cancer is more malignant than a cancer of that type which is well differentiated. Undifferentiated cells are said to be anaplastic.
- Undulant fever
An infectious disease due to the bacteria Brucella that characteristically causes rising and falling fevers, sweats, malaise, weakness, anorexia, headache, myalgia (muscle pain) and back pain. The disease is called undulant fever because the fever is typically undulant, rising and falling like a wave. It is also called brucellosis after its bacterial cause. The disease […]
Having a wavy border or form. Also, rising and falling like a wave. For example, the border of a wound may be undulant, as may the edge of a rash. And sound waves may also be undulant. The word “undulant” comes from the Latin “undula” which is the diminutive of “unda” meaning wave. So “undula” […]
To have a wavy border or form. Also, to rise and fall like a wave. For example, the border of a wound may undulate, as may the edge of a rash. And sound waves may undulate. The word “undulate” comes from the Latin “undula” which is the diminutive of “unda” meaning wave. So “undula” is […]
Acronym for the United Nations Educational, Scientific, and Cultural Organization.
Consisting of one cell only. Some organisms, such as bacteria, are unicellular. Unicellular is in contrast to multicellular.