[ kaw-deks ]
/ ˈkɔ dɛks /

noun, plural cau·di·ces [kaw-duh-seez] /ˈkɔ dəˌsiz/, cau·dex·es. Botany.

the main stem of a tree, especially a palm or tree fern.
the woody or thickened persistent base of an herbaceous perennial.

Origin of caudex

1820–30; < Latin: tree trunk; cf. codex Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for caudex

British Dictionary definitions for caudex

/ (ˈkɔːdɛks) /

noun plural -dices (-dɪˌsiːz) or -dexes

the thickened persistent stem base of some herbaceous perennial plants
the woody stem of palms and tree ferns

Word Origin for caudex

C19: from Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for caudex

[ kôdĕks′ ]

The thickened, usually underground base of the stem of many perennial herbaceous plants, from which new leaves and flowering stems arise.
The trunk of a palm or tree fern.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.