English Reference

Word

TLS

Definitions

01internet security protocol

C2 · Computing

n. Stands for Transport Layer Security. This is the system that encrypts data to keep your internet connection private and secure.

n. Abbreviation for Transport Layer Security. A cryptographic protocol that provides end-to-end security for data sent between applications over the internet, succeeding the older SSL standard.

“The website uses TLS to make sure your credit card details stay private.”

“Modern web browsers require a valid TLS certificate to establish a secure connection and prevent man-in-the-middle attacks.”

Technical

Usage

Usually functions as an uncountable noun or as a modifier before another noun like 'certificate' or 'handshake'.

Teaching tip

While many people still say 'SSL', TLS is the modern technical standard that replaced it; in professional contexts, use TLS.

Synonyms

encryptionsecurity protocol

02medical condition

C2 · Medicine

n. Stands for tumor lysis syndrome. A serious condition that can happen when cancer cells break down very quickly during treatment.

n. Abbreviation for tumor lysis syndrome. A group of metabolic complications that can occur after treatment of cancer, where large amounts of tumor cells are killed off at once.

“The doctors monitored the patient closely for signs of TLS after the first round of chemotherapy.”

“Prophylactic measures are essential for patients at high risk of developing TLS during the induction phase of treatment for aggressive lymphomas.”

Technical

Usage

Uncountable noun; typically used in clinical or academic medical contexts.

Teaching tip

This is a highly specialized medical term; unless you are in the healthcare field, you will likely only encounter the internet security meaning of this acronym.

Etymology

An initialism of transport layer security. The term was introduced in 1999 to denote the successor to the Secure Sockets Layer protocol.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domain

Web Development

This entry

Level
C2 · Proficiency
Updated

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English Reference