nounrare, historical Physiology
More fully "accelerans cordis". Any of the sympathetic nerves supplying the heart and causing its rate of beating to increase. Frequently attributive, especially in "accelerans nerve".
Late 19th century; earliest use found in Journal of Anatomy and Physiology. Shortened from scientific Latin nervus accelerans cordis from classical Latin nervus + accelerāns, present participle of accelerāre + cordis, genitive singular of cor heart.