CT or ct may refer to:
Writer H.P. Lovecraft created a number of fictional deities throughout the course of his literary career, including the "Great Old Ones" and the "Outer Gods", with sporadic references to other miscellaneous deities (e.g.
Cthulhu ([(k)ʟ̝̊ʊlʔɬuː]) is a fictional cosmic entity created by writer H. P. Lovecraft and first introduced in the short story "The Call of Cthulhu", published in the American pulp magazine Weird Tales in 1928. Considered a Great Old One within the pantheon of Lovecraftian cosmic entities, the creature has since been featured in numerous popular culture references.
A CT scan (often referred to as a CAT scan) makes use of computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting.
Ctenophora (/tᵻˈnɒfərə/; singular ctenophore, /ˈtɛnəfɔːr/ or /ˈtiːnəfɔːr/; from the Greek κτείς kteis 'comb' and φέρω pherō 'carry'; commonly known as comb jellies) is a phylum of invertebrate animals that live in marine waters worldwide.
CTV is an English-language broadcast television network in Canada launched in 1961. Since 2000 it is owned by the Bell Media division of BCE, Inc.
The annual CTM Festival is a music and visual arts event held in Berlin, Germany. Founded in 1999, the festival originally focused on electronic music, but has since evolved to cover a wide range of genres under the banner "Festival for Adventurous Music and Related Visual Arts".
Color Television Interface Adaptor (CTIA) and its successor Graphic Television Interface Adaptor (GTIA) are custom chips used in the Atari 8-bit family of computers and in the Atari 5200 console.
CTrain is a light rail transit system in Calgary, Alberta, Canada. It began operation in May 25, 1981 and has expanded as the city has increased in population.
The enigmatic fly family Ctenostylidae is a small group of very rare flies formerly included in the family Pyrgotidae (as the subfamily "Lochmostyliinae"); the principal reason for their inclusion in the Pyrgotidae was the absence of ocelli, a feature originally thought to be a unique defining feature ("autapomorphy") of the Pyrgotidae.