Definitions
1.nounEither of the two points at the ends of a line segment.
2.nounA defined occurrence during the observation period of an experiment or study.
3.nounThe stage in a titration at which a change in the colour of an indicator indicates that no more titrant should be added.
4.nounThe entity at one end of a connection.
5.nounEither of the two nodes of a graph of degree 1.