pentámeros

Pentámeros is a term that can refer to several different concepts depending on the context, most commonly in mathematics and chemistry.

In mathematics, a pentámero is a polyomino of order 5, meaning a shape formed by connecting five equal squares edge to edge on a grid. Like other polyominoes, pentámeros can be classified by their connectivity. There are 12 distinct free pentámeros, meaning that rotations and reflections are considered the same shape. If reflections are considered distinct, there are 18 fixed pentámeros. These shapes have been studied for their tiling properties and in recreational mathematics.

In chemistry, a pentámero refers to a molecule or polymer composed of five monomer units. For instance, a pentapeptide is a peptide made of five amino acids linked by peptide bonds. Similarly, a pentasaccharide is a carbohydrate molecule formed from five monosaccharide units. These are specific examples within the broader categories of oligomers, which are molecules formed from a small number of repeating units. The properties of these pentámeros are directly related to the specific monomers and the way they are linked together.