(chemistry) The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds. / A tiny amount.

(quantum mechanics, chemistry) The quantum mechanical behaviour of an electron in a molecule describing the probability of the electron's particular position and energy; approximated by a linear combination of atomic orbitals.

(chemistry) Relating to, or consisting of, or produced by molecules. / (chemistry) (of an element) Combined with itself and with no other element; elemental.

(chemistry) Any compound having a specified (range of) molecular weight(s)

To annoy intentionally. / To disturb or tamper with. / To sexually assault or sexually harass.

plural of molecular formula

(pharmacology) A medicinal drug compound having a molecular weight of less than 1000 daltons, and typically between 300 and 700 daltons.

(transitive, idiomatic) To treat a problem as greater than it is; to blow something out of proportion; to exaggerate the importance of something trivial.

A field of biology which studies the structure and function of genes at a molecular level.

(chemistry) The mass of an individual molecule of an element or compound.