form of iso- before a vowel

(geology) The state of balance or pressure equilibrium thought to exist within the Earth's crust, whereby the upper lithosphere floats on denser magma beneath.

(physics) a small difference in the transition energies of isotopes that corresponds to a given spectral line transition

(chemistry) Any technique that involves the addition to a sample of an isotopically labelled compound.

A book of the Old Testament of the Bible, and of the Tanakh. / (Abrahamic religions) A prophet, the author of the Book of Isaiah. / A male given name from Hebrew.

(family, idiomatic) Family relations and loyalties are stronger than relationships with people who are not family members.

(chemistry, physics) a technique for maintaining reactive molecules in an inert material at low temperature for spectroscopic study

A breed of poultry.

Nothing is impossible or out of reach.

A group of islands in the Antarctic Circle, lying north of the Antarctic Peninsula.