Nucleobases

Part of speech: noun

Definitions

1. A type of nitrogenous compound integral to the structure of nucleic acids, these bases form the building blocks for genetic coding and pair specifically during the formation of DNA and RNA
2. These important nitrogen-containing molecules are foundational to nucleic acid structure and serve as essential pairing units in the encoding of genetic information in biological systems
3. A category of nitrogenous compounds that are crucial for constructing nucleic acids, serving as key components in the hereditary coding process and facilitating specific pairing in DNA and RNA formation

Etymology: Nucleobases is the plural of "nucleobase," a chemical term for the nitrogen-containing units that make up the genetic building blocks of DNA and RNA. The singular is a compound of "nucleo-" and "base." The first part comes from Latin "nucleus," a kernel, which is a diminutive of "nux," meaning nut, traced back to a Proto-Italic root *knuks. English uses the same Latin word for the central part of a cell or atom, where the image of a kernel inside a shell still shows. "Base" is an English word that here names the chemical units that pair up within the molecule.