It refers to the ingo and outgo and what takes place with the ingo, what becomes of it, how it is changed into the material that goes out, what is built up, what is assimilated, how the changes take place here and there. That is all metabolism.

You'd better lock up your belongings before handing your keys to a valet; some of them have sticky fingers.

For quotations using this term, see Citations:receipter.

Fourthly, I have made an effort to call the attention of the reader to the pertinent literature.