Used in forming intensive and reflexive forms of the singular personal pronouns.

To sell all of a product that is in stock. / (intransitive) To abandon or betray one's supporters or principles to seek profit or other personal advantage.

(US, law) A pathogen or biological toxin which has been declared to have the potential to pose a severe threat to public health and safety.

plural of select agent

The purposeful act of presenting oneself to others in a favorable way, often viewed by others negatively as forceful, exaggerated, or self-indulgent.

A deprivation at one's own initiative.

plural of self-deprivation

Exhibiting self-hatred; feeling hatred toward oneself.

The final date on which a perishable product can be legally sold to the public. / (idiomatic, by extension) Used to indicate that something, or someone, is old and out of date.

The assembly of a retail product by the customer. / The assembly of a biological or chemical material from a disorganized collection by means of interactions between the components.