Breadcrumb Home > Thesaurus > A Synonyms of arcsecond Find synonyms for: Noun 1. second, arcsecond, angular unit usage: a 60th part of a minute of arc; "the treasure is 2 minutes and 45 seconds south of here" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of arcsecond (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: parallax Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language