Definitions for "Likelihood function"
A function that represents the joint probability of all the points in a data set. For complete data, the likelihood function consists of the product of the pdf for each data point; for data sets that also include suspended or censored data, the likelihood function is more complex. Maximum likelihood estimation (MLE) techniques maximize this function in order to determine the best parameter estimates.
a conditional probability distribution considered as a function of its second argument, holding the first fixed
a probability or density function for a set of data and given estimates of its parameters