| prot | small horned dinosaur |
|---|---|
| prot | code of correct conduct |
| prot | forms of ceremony and etiquette observed by diplomats and heads of state |
| prot | (computer science) rules determining the format and transmission of data |
| prot | any of the unicellular protists |
| prot | any of the families of Protoctista |
| prot | any genus of Protoctista |
| prot | the order of protoctista |
| prot | in most modern classifications, replacement for the Protista |
| prot | characteristic of the earliest phase of geometric art especially in Greece |
| prot | a complex red organic pigment containing iron and other atoms to which oxygen binds |
| prot | a reddish-brown chloride of heme |