Part of speech:
A thing or part added; increase; specif., a room or rooms added to a building
(Physiology) The process by which multiple or repeated stimuli can produce a response in a nerve, muscle, or other part that one stimulus alone cannot produce.
Hence, any account or score kept by notches or marks, whether on wood or paper, or in a book, especially one kept in duplicate.
Find another word for adding-up. In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for adding-up, like: addition, counting up, summation, tally and totaling.