-ics, -tics [-ac after i]

(Greek: a suffix that forms nouns and is usually used to form names of arts and sciences)

pediatrics (s) (noun) (no pl)
The branch of medical science dealing with the study of childhood and the diseases of children: Arthur decided to specialize in pediatrics which is concerned with the diagnoses and treatment of the health and diseases of children during their development from birth through adolescence.
pedodontics (s) (noun) (no pl)
The branch of dentistry concerned with the dental care and treatment of children: Because Tom had studied pedodontics and had his own dental clinic, he had lots of young patients, sometimes with very bad teeth, but he always told them to take very good care of their teeth!
pedogenics
In geology, a branch of soil science that involves the study of the origin, formation, and development of soil.
pedorthics, pedorthic
The design, manufacture, fit, and modification of shoes and related foot appliances as prescribed for amelioration of painful and/or disabling conditions of the foot and limb.
periodontics (s)
The branch of dentistry concerned with the prevention, diagnosis and treatment of diseases affecting the gums and supporting structures of the teeth.
petroglyphics (noun) (plural form used as a singular)
The pictures which have been carved into rocks: Petroglyphics, which have been chiseled into stones by the Mayo people about 500 years ago, can be seen at the Tehuelibampo Museum in the state of Sonora in the northern part of Mexico.
pharmaceutics
1. The science of preparing and dispensing drugs.
2. Pharmaceutical preparations; medicinal drugs.
3. The science of pharmaceutical systems, i.e., preparations, dosage forms, etc.
4. The field of knowledge involving the preparation, development, usage, and distribution of drugs.
pharmacodynamics
1. The study of the action of drugs, including all aspects of their behavior in the body, i.e. transport to tissues, persistence in blood stream and tissues; as well as, their immediate biochemical activity.
2. The study of the biochemical and physiological effects of drugs and the mechanisms of their actions, including the correlation of actions and effects of drugs with their chemical structure; also, such effects on the actions of a particular drug or drugs.
pharmacoeconomics
The study of economic factors regarding the cost of drug therapy, including their impact on health care systems and society.
pharmacogenetics
1. The study of the genetically-determined response to drugs.
2. The scientific study of the relationship between genetic factors and the nature of responses to drugs.
3. The branch of genetics that studies the genetically determined variations in responses to drugs in humans or laboratory organisms.
pharmacogenomics
The whole genome application of pharmacogenetics, which examines the single gene interactions with drugs.

It is generally regarded as the study or clinical testing of genetic variations that give rise to differing responses to drugs.

pharmacognostics
Another term for pharmacgnosy.
pharmacokinetics
1. The activity or fate of drugs in the body over a period of time, including the processes of absorption, distribution, localization in tissues, biotransformation, and excretion.
2. The study of drug dynamics; the distribution of drugs in biological systems and the influence of absorption, tissue distribution, metabolism, and elimination by excretion on the disposition of a drug.
pharmacometrics
1. The comparative evaluation of drug activity, distinguished from bioassay in that substances with different chemical constitutions are compared.
2. The quantitative assessment of drug activity using bioassay techniques and chemical analyses to identify the pharmacologically active components and evaluate their efficacy.
pharmacotherapeutics
1. Study of the uses of drugs in the treatment of disease.
2. The study of the use of drugs as therapeutic agents, their administration, pharmacokinetcs, and effectiveness, and their side effects and toxicity.