pyridoxal

noun

pyr·​i·​dox·​al ˌpir-ə-ˈdäk-ˌsal 

: a crystalline aldehyde C₈H₉NO₃ of the vitamin B₆ group that occurs as a phosphate and is active as a coenzyme

Word History

Etymology

International Scientific Vocabulary, from pyridoxine

First Known Use

1944, in the meaning defined above

Medical Definition

pyridoxal

noun

pyr·​i·​dox·​al ˌpir-ə-ˈdäk-ˌsal 

: a crystalline aldehyde C₈H₉NO₃ of the vitamin B₆ group that in the form of its phosphate is active as a coenzyme