That takes part in self-organization

(law) In the law of evidence, being a piece of evidence that will automatically be presumed authentic for purposes of admissibility based on the character of the evidence itself. Examples include certified copies of public or business records, official publications of government agencies, and newspaper articles.

self-raising

(of flour) Capable of rising without added leavening agent.

To belittle oneself in judgment; to underestimate oneself and one's abilities (and thus avoid being acknowledged to the deserved extent).

Any of a group of ferny plants of the genus Selaginella, spike moss.

plural of self-treatment

(medicine) The action of attempting to cure one's own medical condition. / (medicine) A method or substance intended to permit the user to cure their own medical condition.

The feedback of the output of a generator

Storage of one's goods in a rented commercial facility.