radicand

UK: /ˈrædɪˌkænd/, /ˌrædɪˈkænd/

US: (rad′i kand′, rad′i kand′)

WordReference Random House Unabridged Dictionary of American English © 2025

rad•i•cand  (rad′i kand′, rad′i kand′), n. [Math.]

1. Mathematics the quantity under a radical sign.

• Latin rādīcandum, neuter gerundive of rādīcāre, derivative of rādīx root¹
• 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::

radicand / ˈrædɪˌkænd ˌrædɪˈkænd/ noun

1. a number or quantity from which a root is to be extracted, usually preceded by a radical sign: 3 is the radicand of √3

Etymology: 20th Century: from Latin rādīcandum, literally: that which is to be rooted, from rādīcāre to take root, from rādīx root