dichasium

(redirected from dichasia)
Also found in: Medical, Encyclopedia.
Related to dichasia: dichasium, Racemes

di·cha·si·um

 (dī-kā′zē-əm, -zhē-əm, -zhəm)
n. pl. di·cha·si·a (-zē-ə, -zhē-ə, -zhə)
A cyme having two lateral flowers or branches originating from opposite points beneath a terminal flower.

[New Latin, from Greek dikhasis, division, from dikhazein, to divide in two, from dikha, in two; see dwo- in Indo-European roots.]

di·cha′si·al (-zē-əl, -zhē-əl, -zhəl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

dichasium

(daɪˈkeɪzɪəm)
n, pl -sia (-zɪə)
(Botany) a cymose inflorescence in which each branch bearing a flower gives rise to two other flowering branches, as in the stitchwort. Compare monochasium
[C19: New Latin, from Greek dikhasis a dividing, from dikhazein to divide in two, from dikha in two]
diˈchasial adj
diˈchasially adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

di•cha•sium

(daɪˈkeɪ ʒəm, -ʒi əm, -zi əm)

n., pl. -si•a (-ʒi ə, -zi ə)
Bot. a form of cyme in which each stem produces a pair of side stems.
[1870–75; < New Latin < Greek díchas(is) a division, derivative of dicházein to cleave (derivative of dícha apart)]
di•cha′sial, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The inflorescences are compact thyrses (rarely racemes) with 3-flowered dichasia (rarely single flowers) as lateral branches (for terms, see Endress, 2010).
Muell.) Legrand with glabrous nodes and flowers in dichasia and subgenera Portulaca with nodal scales or hairs and terminal flowers.
Nasa sanagoranensis has terminal mono- or dichasia or few-branched thyrsoids with 5-8 pendent flowers as typical for N.
Inflorescences frondose, terminal, mono- or asymmetrical dichasia, rarely thyrsoids; with 3-7 flowers, with internodes 4-9 cm long; pedicels 3-15 (-50) mm long during anthesis.
This simple inflorescence is a common unit that when repeated produces other more complex branching patterns called both compound cymes and compound dichasia (see Figure 9-11).
These are composed of tightly packed dichasia (i.e., groups of flowers on a highly reduced branch) attached to a central, common axis [ILLUSTRATION FOR FIGURE 1 OMITTED].