| cm | centimeter |
| 4G | Fourth-generation cellular networks |
| 5G | Fifth-generation cellular networks |
| 6G | Sixth-generation cellular network |
| AAMI | Association for the Advancement of Medical Instrumentation |
| API | Application Programming Interface |
| A/V | Audio/Video |
| AES | Advanced Encryption Standard |
| AI | Artificial Intelligence |
| ANSI | American National Standards Institute |
| AR | Augmented Reality |
| BAN | Body Area Network |
| BCI | Brain-Computer Interfaces |
| BLE | Bluetooth Low Energy |
| CARES | U.S. Coronavirus Aid, Relief, and Economic Security Act |
| CCD | Charged Coupled Device |
| CLSI | Clinical & Laboratory Standards Institute |
| CMOS | Complementary Metal-Oxide Semiconductor |
| CNN | Convolutional Neural Network |
| COVID-19 | Coronavirus Disease 2019 |
| DApps | Distributed Apps |
| DDoS | Distributed Denial of Service |
| DL | Deep Learning |
| DNN | Deep Neural Network |
| DNS | Domain Name System |
| DoS | Denial of Service |
| DVR | Digital Video Recorder |
| ECG | Electrocardiography |
| EEG | Electroencephalography |
| EHR | Electronic Health Record |
| EJ | Exajoule |
| EU | European Union |
| FDA | Food and Drug Administration |
| FL | Federated Learning |
| GDPR | General Data Protection Regulation |
| GLONASS | Global Navigation Satellite System |
| GMM | Gaussian Mixture Model |
| GPS | Global Positioning System |
| GPU | Graphical Processing Unit |
| GSR | Galvanic Skin Response |
| HCS | Human-Centric Sensing |
| HDFS | Hadoop Distributed File System |
| HIPAA | Health Insurance Portability and Accountability Ac |
| HITECH | Health Information Technology for Economic and Clinical Health |
| IEC | International Electrotechnical Commission |
| IEEE | Institute of Electrical and Electronics Engineers |
| IoT | Internet of Things |
| IT | Information Technology |
| IR | InfraRed |
| ISA | International Society of Automation |
| ISO | International Organization for Standardization |
| LAN | Local Area Network |
| LBS | Location-Based Services |
| LiDAR | Light Detection And Ranging |
| LSTM | Long Short-Term Memory |
| MAC | Medium Access Control |
| MANET | Mobile Adhoc NETworks |
| MEMS | Microelectromechanical Systems |
| m-Health | Mobile Health |
| MITM | Man In the Middle |
| ML | Machine Learning |
| MRF | Markov Random Field |
| NFC | Near-Field Communication |
| NN | Neural Network |
| OS | Operating System |
| PA-DSS | Payment Application Data Security Standard |
| PAN | Personal Area Network |
| PB | Petabytes |
| PCA | Principal Component Analysis |
| PCM | Phase-Change Memory |
| PPG | Photoplethysmography |
| PS/CS | Participatory/Crowdsensing Systems |
| PV | Photovoltaic |
| RF | Radiofrequency |
| RFID | Radiofrequency Identification |
| SARS-CoV-2 | Severe Acute Respiratory Syndrome Coronavirus 2 |
| SQL | Structured Query Language |
| SVM | Support Vector Machine |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
| TWS | True Wireless Stereo |
| UL | UL Incorporated, previously known as Underwriters Laboratories |
| USD | US Dollars |
| USFDA | US Food and Drug Administration |
| WLAN | Wireless Local Area Network |
| WSN | Wireless Sensor Network |
| WWAN | Wireless Wide Area Network |