A replicate is the outcome of an experiment or observation obtained in course of its replication. In applied statistics, a set of replicates obtained in a series of replications of the experiment or observations is considered as a sample from a much bigger population. This creates the logical basis to apply statistical methods and derive some conclusions about the population as a whole.
For example, in an opinion poll, a questionnaire filled in by an individual is a replicate. The process of obtaining more questionnaires (replicates) by selecting additional individuals and asking them the same questions, is an example of replication.