oral sex

stimulation of the external genitals by the partner’s mouth. Oral sex may be carried out to the point of orgasm or done as part of foreplay. It is not uncommon for people to classify oral sex as not really sex; for example, research has shown that some adolescents who have experienced oral sex to orgasm but have not participated in vaginal intercourse perceive themselves as still being virgins. See also orogenital activity.

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Psychology term of the day

May 9th 2024

best fit

the theoretical pattern that best accounts for the relationships among variables in a data set. For example, a regression equation having the best fit to sample data is the one that minimizes differences between observed and predicted values. On a scatterplot, a line of best fit provides a visual depiction of this pattern, allowing extrapolation to values not part of the original data set. It is important to note that the best-fitting pattern is not necessarily the one that generated the observed data, as other patterns not considered may provide a superior fit.