👉 In biology, lissomness refers to a condition in which cells of a cell group (a tissue) are not evenly distributed throughout that group. This can occur in various tissues and organs, but is most commonly seen in the human body where it occurs in the liver. The term "lissomness" comes from the Greek words "lisis," meaning "uniformity," and "mone," meaning "cell." The condition describes a situation when cells of a cell group are not