Semantics is the study of meaning. Meaning itself is a broad area of study. It can refer to lexical meaning or structural meaning (the meaning related to the structure of sentence). I will try to give the example of structural meaning. A sentence consists of pragmatic information and semantic information.
The polymerase chain reaction (PCR) is a technology in molecular biology used to amplify a single copy or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.n the second step, the temperature is lowered and the two DNA strands become templates for DNA polymerase to selectively amplify the target DNA. The selectivity of PCR results from the use of primers that are complementary to the DNA region targeted for amplification under specific thermal cycling conditions.
The Continuity of Care Record standard, often referred to simply as the CCR standard or CCR, is a patient health summary standard, widely used for secure, computable, electronic capture and transfers of personal health data from one health IT system to another.