monothecaladj.

Brit.

/ˌmɒnə(ʊ)ˈθiːkl/, U.S.

/ˌmɑnəˈθik(ə)l/

Origin: Formed within English, by derivation. Etymons: mono- comb. form, theca n., -al suffix¹.

Etymology: < mono- comb. form + theca n. + -al suffix¹. Compare tetrathecal adj. at tetra- comb. form 1, dithecal adj.

Botany.

Of an anther or stamen: having a single cavity.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having stamens or pistils > of or having stamens or male > of or having anthers and related parts

incumbent1760

versatile1760

antheral1795

antheriferous1799

monothecal1849

vacillant1860

connectival1866

trajectile1900

monothecous1945

1849 J. H. Balfour Man. Bot. §405 Sometimes the anther has a single cavity, and becomes unilocular.., or monothecal.

1985 Jrnl. Plant Anat. & Morphol. 2 53 There are three stamens, two are bithecous and third one is monothecous. The monothecal condition is derived by the suppression of a theca.

1998 Ann. Bot. 82 273 [In Moringa] monothecal anthers are formed by the failure of one half to initiate.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	monothecal
释义	monothecaladj. Brit. /ˌmɒnə(ʊ)ˈθiːkl/, U.S. /ˌmɑnəˈθik(ə)l/ Origin: Formed within English, by derivation. Etymons: mono- comb. form, theca n., -al suffix¹. Etymology: < mono- comb. form + theca n. + -al suffix¹. Compare tetrathecal adj. at tetra- comb. form 1, dithecal adj. Botany. Of an anther or stamen: having a single cavity. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having stamens or pistils > of or having stamens or male > of or having anthers and related parts incumbent1760 versatile1760 antheral1795 antheriferous1799 monothecal1849 vacillant1860 connectival1866 trajectile1900 monothecous1945 1849 J. H. Balfour Man. Bot. §405 Sometimes the anther has a single cavity, and becomes unilocular.., or monothecal. 1985 Jrnl. Plant Anat. & Morphol. 2 53 There are three stamens, two are bithecous and third one is monothecous. The monothecal condition is derived by the suppression of a theca. 1998 Ann. Bot. 82 273 [In Moringa] monothecal anthers are formed by the failure of one half to initiate. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < adj.1849
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