a fully differentiated structural and functional unit in an animal that is specialized for some particular function
have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
either extremity of something that has length
the concluding parts of an event or occurrence
the point in time at which something ends
bring to an end or halt
the state of affairs that a plan is intended to achieve and that (when achieved) terminates behavior intended to achieve it
a final state
