Apicomplexan.

Brit.

/ˌeɪpᵻkəmˈplɛksə/, U.S.

/ˌeɪpəkəmˈplɛksə/

Origin: A borrowing from Latin. Etymon: Latin Apicomplexa.

Etymology: < scientific Latin Apicomplexa (N. D. Levine 1970, in Proc. 2nd. Internat. Congr. Parasitol. i. 208/2) < classical Latin apic- , apex (see apex n.¹) + complexus complex n. + scientific Latin -a -a suffix², so called on account of the apical complex of organelles that is characteristic of these organisms.

Biology.

With plural agreement: a subphylum or phylum of parasitic spore-forming protists characterized by a complex of organelles at the apical end (visible only by electron microscopy), and comprising most of the organisms formerly placed in the Sporozoa; (also in form apicomplexa) organisms of this subphylum or phylum (collectively or individually).The Apicomplexa are probably monophyletic, unlike the group Sporozoa that it replaces, and are sometimes regarded as a kingdom. Among the sporozoan groups omitted from the Apicomplexa are the microsporidians and the myxosporidians.

ΚΠ

1971 Trans. Amer. Microsc. Soc. 90 3 The fact that the piroplasms belong to the Apicomplexa (Polannulifera, Annulifera) has been established in recent years by electron microscopy.

1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) ii. 23/1 The parasites of greatest economic importance are found in the subphylum Mastigophora and phylum Apicomplexa.

1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) ii. 140/1 The Apicomplexa are single-celled symbiotrophs modified to penetrate tissue and obtain food from animals.

2004 Connecticut Post (Nexis) 26 Mar. Crypto is related to malaria and also to toxoplasma, all of which are included in the group of parasites called Apicomplexa.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).

单词	apicomplexa
释义	Apicomplexan. Brit. /ˌeɪpᵻkəmˈplɛksə/, U.S. /ˌeɪpəkəmˈplɛksə/ Origin: A borrowing from Latin. Etymon: Latin Apicomplexa. Etymology: < scientific Latin Apicomplexa (N. D. Levine 1970, in Proc. 2nd. Internat. Congr. Parasitol. i. 208/2) < classical Latin apic- , apex (see apex n.¹) + complexus complex n. + scientific Latin -a -a suffix², so called on account of the apical complex of organelles that is characteristic of these organisms. Biology. With plural agreement: a subphylum or phylum of parasitic spore-forming protists characterized by a complex of organelles at the apical end (visible only by electron microscopy), and comprising most of the organisms formerly placed in the Sporozoa; (also in form apicomplexa) organisms of this subphylum or phylum (collectively or individually).The Apicomplexa are probably monophyletic, unlike the group Sporozoa that it replaces, and are sometimes regarded as a kingdom. Among the sporozoan groups omitted from the Apicomplexa are the microsporidians and the myxosporidians. ΚΠ 1971 Trans. Amer. Microsc. Soc. 90 3 The fact that the piroplasms belong to the Apicomplexa (Polannulifera, Annulifera) has been established in recent years by electron microscopy. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) ii. 23/1 The parasites of greatest economic importance are found in the subphylum Mastigophora and phylum Apicomplexa. 1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) ii. 140/1 The Apicomplexa are single-celled symbiotrophs modified to penetrate tissue and obtain food from animals. 2004 Connecticut Post (Nexis) 26 Mar. Crypto is related to malaria and also to toxoplasma, all of which are included in the group of parasites called Apicomplexa. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021). < n.1971
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