Glossary.md

@@ -14,8 +14,9 @@ This page lists key concepts and terminology related to the PEP system, and prov
 | column | | A [data structuring](Data-structure) primitive associated with a single type of data, or with a single measurement. Columns are referred to by their names. |
 | column group | | A named set of columns that can be used as a basis for [data access management](Access-control#data-access). |
 | command line interface | CLI | A facility to interact with computer software by means of textual input and output. Contrast with GUI, which provides an image-based interface. PEP's main CLI utility is called `pepcli`. |
-| download | | As a verb: the act of retrieving data from PEP.<br>As a noun: a data set that has been retrieved from PEP. |
 | Data Administrator | DA | The PEP role responsible for [data structuring](Data-structure) and management. Users with this role are called "data administrators". |
+| device | | An instrument or apparatus that collects data to be stored by PEP. The term is commonly used to refer to wearable devices (such as smart watches) that collect biometric data. |
+| download | | As a verb: the act of retrieving data from PEP.<br>As a noun: a data set that has been retrieved from PEP. |
 | Electronic Data Capturing system | EDC | (Third-party) software used to collect and store data, e.g. from academic research study subjects. PEP provides out-of-the-box integration with the [Castor EDC](https://www.castoredc.com/electronic-data-capture-system/). |
 | [ElGamal encryption](https://en.wikipedia.org/wiki/ElGamal_encryption) | | The cryptographic algorithm used as a basis for PEP's polymorphism. |
 | encryption | | A technique to make information readable only to parties that are in possession of an associated secret. Also see "polymorphic encryption". |