In all living organisms, Coenzyme A is synthesized in a five-step process that requires four molecules of ATP, from pantothenate and cysteine: 1  Pantothenate (vitamin B5) is phosphorylated to 4'-phosphopantothenate by the enzyme pantothenate kinase (PanK; CoaA; CoaX)
Origin: From TARDIS, the time machine in British science-fiction TV programme Doctor Who. Freebase(0.00 / 0 votes)Rate this definition: The TARDIS is a time machine and spacecraft in the British science fiction television programme Doctor Who and its associated spin-offs. A TARDIS is a product of the advanced technology of the Time Lords, an extraterrestrial civilisation to which the programme's central character, the Doctor, belongs.
tarsus. 1  Anatomy, Zoology. the bones of the proximal segment of the foot; the bones between the tibia and the metatarsus, contributing to the construction of the ankle joint. 2  the small plate of connective tissue along the border of an eyelid. 3  tarsometatarsus.