dichotomouslyadv.
/dʌɪˈkɒtəməsli/, /dᵻˈkɒtəməsli/, U.S. /daɪˈkɑdəməsli/ Chiefly Botany.
In a dichotomous manner; by division into twos or pairs. Cf. dichotomous adj.
ΘΚΠ
the world > relative properties > number > specific numbers > two > division into two > [adverb] > in or into two
a-twoc885
a-twina1300
a-twain1377
dichotomously1751
dichotomically1843
the world > life > biology > physical aspects or shapes > physical arrangement or condition > [adverb] > branching
furcately1846
dichotomously1881
1751 J. Hill Gen. Nat. Hist. II. 22 It [sc. Fucus latifolia serrata] divaricates..till a great number of ramifications are produced, and all of them dichotomously, or by pairs.
1806 J. Galpine Synoptical Compend Brit. Bot. §102 Stem herbaceous, dichotomously panicled.
1881 A. Flint Treat. Princ. Med. (ed. 5) 160 A bronchus, after it enters a lobule..divides dichotomously once or twice and terminates in the alveolar passages.
1909 N.Y. Observer 3 June 690/1 This is the part that he must divide into heads and sub-heads either ‘dichotomously’ or ‘trichotomously’,—patience will cease to be a virtue on the part of the congregation if the sermon goes further than this.
1961 W. Martin Flora N.Z. (ed. 4) 20 The fronds of this dichotomously branched seaweed are covered with rough outgrowths bearing the organs of reproduction.
2004 Systematic Bot. Monogr. 70 8 Primary leaf divisions are divided dichotomously or subdichotomously.
This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022).
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adv.1751