to begin to write; to start writing; to write out (e.g. on a blackboard); to extract (and write down); to write down (the important parts); to export
molecule; numerator; element (of a group); member; particle
chemical reaction; generation of an unexpected result from combining things
neutrality (incl. chemical, electrical, etc.); indifference; sexlessness; androgyny; neuter gender
fluid mechanics; fluid dynamics; hydrodynamics
magnetism; magnetic force
dietetics; nutritional science
factorization; factorisation
sequence; progression; several lines; several rows
differentiation; differential; derivative