
A method of separating components of a mixture based on differences in their boiling points, often used to purify liquids.

A chemical bond formed between two sulfur atoms, commonly found in proteins, stabilizing their structure.

A covalent bond between the sulfur atoms of two cysteine amino acids in a protein, important for maintaining protein structure.

A class of terpenes consisting of two terpene units, typically found in plants and contributing to the synthesis of essential oils and hormones.

Referring to organisms or processes that are active during the day and inactive during the night.

The process of enlarging or expanding, such as the widening of blood vessels or the pupil of the eye.

A method used to check the consistency of equations by analyzing the units of measurement in physical quantities.

A molecule or compound formed by the combination of two smaller molecules, known as monomers, through a chemical bond.

The existence of two distinct forms or isomers of a molecule, particularly in the context of biological molecules or organisms.

A chemical compound often used in laboratories for methylation reactions, but also recognized for its toxicity.