-ism, -ismus

(Greek, ismos; Latin, ismus: a suffix: belief in, practice of, condition of, process, characteristic behavior or manner, abnormal state, distinctive feature or trait)

synorchism
synthetism
syntrophism
State of mutual dependence, with reference to food supply, of organs or cells of a plant or an animal.
tachkymetabolism
tachytrophism
Rapid or increased metabolism.
tautochromism
Apparently a misspelling of tautochronism.
tautochronism (s) (noun), tautochronisms (pl)
The quality of having the properties of a tautochrone: Jill read about tautochronism as characterising a curve by which a moving object would arrive at a specific spot at the same time by the way of gravity from whichever spot it started.
tautologism
1. The use of tautology.
2. A tautology.
tautomerism
1. Chemical isomerism in which the isomeric forms differ little, usually only in the position of a hydrogen atom, and are able to exist in equilibrium and react with each other.
2. The relationship that exists between two structural isomers that are in chemical equilibrium and freely change from one form to the other.
technocratism (s) (noun), technocratisms (pl)
The system of control of society or industry by technical experts; a ruling body of such experts: The theory of technocratism in the 1930s advocated the control of production and distribution by technicians and engineers.
technological optimism
The idea that technological innovation will be able to overcome, or ameliorate, natural resource scarcity (especially, the depletion of fossil fuels) and environmental degradation.
tectonism, tectonisms
1. The structural behavior of an element of the earth's crust.
2. Crustal instability.
teetotalism
1. Abstaining from drinking alcoholic beverages.
2. The principle or practice of total abstinence from intoxicating drinks.
teleseism, teleseismic
An earthquake that occurs in a part of the world far away from a recording station.
tellurism (s) (noun)
1. The hypothesis of animal magnetism, in which the phenomena are ascribed to the agency of a telluric spirit (proceeding from the earth) or influence.
2. The alleged influence of soil emanations in producing disease.
3. A syndrome resulting from exposure to tellurium and its compounds and comprising dry mouth and skin, metallic taste, nausea, anorexia, somnolence, and vomiting.

The breath of people working with tellurium has a strong, garlicky smell.

4. Etymology: from Latin tellus, "earth; earthy" + -ism, "suffix for forming nouns."