(medicine) A treatment that does not include any operation or intervention.

(physics, chemistry) A conservation law of classical physics that states that the total mass of a closed system remains constant regardless of the chemical or physical changes that take place within it.

(biology) Legal aspects of protection of biodiversity, the environment, and natural resources.

(Canada, politics) A member of the Progressive Conservative Party of Canada.

(Canada, politics) Pertaining to the Progressive Conservative Party.

plural of fiscal conservative

(UK politics) A centre-right political party, official full name Conservative and Unionist Party, informally known as the Tory Party. / (Canadian politics) Clipping of Progressive Conservative Party.

plural of social conservative

(genetics) A model of DNA replication that leaves intact the original DNA molecule.

(biology) The scientific study of the state of Earth's biodiversity with the objective to protect it from becoming extinct.