arc second

or arc-sec·ond

noun

Astronomy. second²(def 4).

RELATED CONTENT

Malpractice, Malarkey, And Other Words From The Second Democratic Debate Here's our roundup of top terms that created buzz on Dictionary.com during the second Democratic debate. For the first five words, we can thank the 10 candidates from the first night of the debate on July 30, and for the second five, the remaining 10 debating on July 31.

What’s The Area Between Your Eyebrows Called?People rarely take the time to notice, much less appreciate, their bodies. What vastly under-recognized parts of the body are there?

Nearby words

arc lamp, arc light, arc of lowitz, arc sec, arc secant, arc second, arc sine, arc spectrum, arc tan, arc tangent, arc welding

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019