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Glossary

Each item in the glossary is also a tooltip.

A tooltip is visible as a dashed underline word or phrase.

If you hover your mouse or tap on a mobile device, the phrase associated with each word is displayed.

Activated: for Omnipod: time at which insulin was injected into pod and 2 beeps were heard

Anchor Links: any header on a LoopDocs page can be used as a link, tap on the paragraphy symbol at the end of the header to view the link in the URL

API_SECRET: password (min 12 characters) needed to access Nightscout Site

BAGE: pump battery age on Nightscout site

Big Sur: older version for operating system for Mac, macOS 11.x

BLE: Bluetooth low energy, used for communication by phones, CGM and some pumps

Build Select Script: by running a command in your terminal, this menu-driven tool assists in building Loop

branch: version of code within a single repository or workspace repository

CAGE: cannula (or pump site) age on Nightscout site

carthage: a program that used to be required to build Loop - no longer needed

Catalina: older version for operating system for Mac, macOS 10.x

Certificate: Apple certificate is used to sign your iOS or Mac apps - tied to but different from your permanent Developer ID

CGM: continuous glucose monitor, wearable medical device that measures and reports glucose in interstitial fluid

Closed Loop: Loop will make automated adjustments of insulin delivery using predictions based off user entries, settings, IOB and COB

clone: create a copy of a repository on your computer including revision history and ability to update using git commands

COB: Carbs on Board, affects automated insulin delivery: the g of carbohydrates that Loop expects to be absorbed and uses for glucose prediction

Config Vars: configuration parameters for a Nightscout Site

Correction Range: Loop recommends changes to basal and / or bolus to bring glucose predictions into this range

CR: Carb Ratio; how many grams of carbs are covered by one unit of rapid-acting insulin

Delivery Limits: max bolus and max basal rates allowed by your therapy settings

DIA: Duration of Insulin Action, the full time insulin is active including a long, low-level tail

Dosing Strategy: chosen method for increased insulin dosing: (1) High Temp Basal or (2) Automatic Bolus with scheduled basal

dynos: used to reboot a Nightscout Site

EmaLink: radio-frequency device Loop uses to control Eros pods and older Medtronic pumps

Event History: record of pump events (bolus or temp basal) reported and used by Loop

Expiration Date: your Loop app has a finite life, the app warns you starting 3 weeks before the expiration date

Finder: graphical folder and file display on Mac

GIF: Graphics Interchange Format (GIF) can be used for small animations and low-resolution video clips

git: a tool for version control

Glucose Chart: Display of measured and predicted glucose values

Glucose Safety Limit: Loop will not suggest insulin delivery when glucose prediction (in next 3 hours) goes below this limit

Guardrails: limits in the code for user selected settings, recommended and absolute limits are provided

Hamburger Menu: three parallel lines that, when tapped, open a new menu

HUD: Heads-Up Display at top of Loop main screen, phone in portrait mode

ICE: Insulin Counteraction Effect - Loop models the expected glucose change based on carbs entered, absorption time and your settings; and adjusts based on measured glucose

IOB: Insulin on Board, affects automated insulin delivery: the current active insulin (above or below the basal rate) that Loop calculates and uses for glucose prediction

iOS: operating system used by Apple Mobile devices (iPhone, iPod)

ISF: Insulin Sensitivity Factor; how many points your blood sugar will drop for each unit of insulin

Issue: On github - a formal method to report a problem, either code behavior or documentation

macOS: operating system for Mac computer

Lock your Phone: click the button on the side of the phone to lock it - prevent accidental touch, i.e., accidental Loop command

Loop Cycle: typically 5 minutes: new CGM reading, prediction update, pump update and, if in Closed Loop, dosing update if needed

MTB: Manual Temp Basal: user initiated temporary basal, Omnipod Common feature

MDT: common abbreviation for Medtronic pumps

modal: message or alert appearing in front of app that must be acknowledged to return to app

Monterey: operating system for Mac, macOS 12.x

Omnipod: Insulet tubeless insulin pump; Loop supports Eros (with RileyLink) and DASH

Open Loop: Loop will not make automated adjustments of insulin delivery but all prediction and recommendation features are available

OrangeLink: radio-frequency device Loop uses to control Eros pods and older Medtronic pumps

OTP: one-time password, this is used to enable caregivers to securely execute remote commands to a Looper's phone

Override: a modification to Loop settings that can change the correction range, the sensitivity (basal, ISF and CR) or both

Package Dependencies: packages that must be downloaded by Xcode (once) to build the app after downloading the LoopWorkspace to your computer

pill: on Nightscout, small boxes with information, tap for extra details

PR: Pull Request - a formal method to request changes to a repository

Pre-Meal Range: modify the correction range for up to one-hour by tapping on an icon in the toolbar

Provisioning Profile: associates your app with your Developer ID and limits app lifetime to 1 year (paid) or 1 week (free)

Pull Request: formal method to request changes to a repository

Quit the Loop App: quit out of the app - different from closing the app - typically you swipe up in the app switcher

repository: contains project files and each file's revision history

RileyLink: radio-frequency device Loop uses to control Eros pods and older Medtronic pumps

Rosetta: allows apps built for older Macs (Intel chips) to run on newer Macs (M1 chips)

SAGE: sensor age on Nightscout site

submodules: for Loop, submodules are repositories defined in the Workspace repository that are required to build the app

Table of Contents: for the LoopDocs website, the TOC is the list of level 2 and 3 headers. The name of the page is a level 1 header.

Terminal: interface for entering commands to the computer

Therapy Settings: Basal Rates, ISF, CR, correction and safety ranges, insulin model and delivery limits

Tokens: on Nightscout, configure access permissions using tokens

Tooltips: brief definitions provided for important terms and abbreviations on the website

URL: website address (Uniform Resource Locator)

watchOS: Apple watch operating system; must be compatible with phone iOS

Workspace: a grouping of several repositories into a complete package

Xcode: program used to build an app

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