actinoid

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ac·ti·noid

 (ăk′tə-noid′)
n.
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.

actinoid

(ˈæktɪˌnɔɪd)
adj
(Zoology) having a radiate form, as a sea anemone or starfish
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actinoid - any of a series of radioactive elements with atomic numbers 89 through 103actinoid - any of a series of radioactive elements with atomic numbers 89 through 103
group, grouping - any number of entities (members) considered as a unit
Adj.1.actinoid - having a radial formactinoid - having a radial form; "starfish are actinoid--that is, they are radially symmetrical"
actinomorphic, actinomorphous - capable of division into symmetrical halves by any longitudinal plane passing through the axis
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
Actinoid
attinoide
References in periodicals archive ?
The synergistic extraction of trivalent actinoids and lanthanoids is of great interest because of the high extraction efficiency of these metal ions in the presence of a chelating agent and a neutral donor [1-7].
Changes in this edition include updates to the chapters on organometallic catalysis in synthesis and production, bioorganometallic chemistry, and new developments in the field; there is also a new chapter on organometallic chemistry of the lanthanoids and actinoids. The book was originally published in German and is in its fifth edition in that language.
The next pair of presentations looked at some of the relationships other than groups and periods, such as the diagonal relationship, the (n) and (n+ 10) relationship, the Knight's move relationship, isoelectronic patterns, relationships among the lanthanoids and actinoids, and the concepts of "combo" and pseudo elements.