monozoicadj.
/ˌmɒnə(ʊ)ˈzəʊɪk/, U.S. /ˌmɑnəˈzoʊɪk/ Zoology.† 1. = monocyttarian adj. Obsolete. rare.Apparently only attested in dictionaries or glossaries.
ΚΠ
1890 Cent. Dict. Monozoic, having a single central capsule, as in a radiolarian.
2. Of an oocyst or sporocyst of a coccidian: developing into a single sporozoite without division.
ΘΚΠ
the world > animals > invertebrates > protozoa > class Sporozoa > [adjective] > like or relating to a sporule > that produces one sporozoite
monozoic1901
1901 G. N. Calkins Protozoa 153 The archispores..form a definite number of sporozoites, varying from one (monozoic) or two (dizoic) to many (polyzoic).
1938 Science 11 Nov. 452/1 The resistant, monozoic spores found in Ostrea are similar.
1993 Vet. Parasitol. 47 225 Tissues from experimentally inoculated outbred Swiss-Webster or inbred BALB/c mice were examined for extraintestinal stages (monozoic cysts) of I. suis.
3. Of a tapeworm: not divided into proglottids, not segmented.
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1911 Science 17 Feb. 272/2 Among the monozoic cestodes, often grouped as a separate class under the name Cestodaria, the Caryophyllæidæ stand closest to the merozoic cestodes.
1923 Q. Jrnl. Microsc. Sci. 67 463 Caryophyllaeidae differ essentially from the Gyrocotylidae in being secondarily monozoic forms.
1951 L. H. Hyman Invertebrates II. x. 311 All such unsegmented tapeworms were formerly placed in a subclass Monozoa... It is now evident..that some of these unsegmented forms are closely related to..the typical segmented tapeworms... The terms monozoic and polyzoic are, however, convenient for descriptive purposes.
1992 Internat. Jrnl. Parasitol. 22 287 The gross morphology and ultrastructure of the different parts of the protonephridial system of the monozoic tapeworms Gyrocotyle urna and Amphilina foliacea are described.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).
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adj.1890