a major grouping (formerly a phylum) of small-to-microscopic pseudocoelomate organisms, as the rotifers, nematodes, and gastrotriches, all of which are now classified as separate phyla.
The invertebrates: Acanthocephala, Aschelminthes, and Endoprocta.
The Biotic Associations of Cockroaches Louis M. Roth
Aschelminthes Asc·hel·min·thes (āsk’hěl-mĭn’thēz’)
A phylum of the Metazoa that includes nematodes and other roundworms that are nonsegmented, bilaterally symmetrical, and cylindrical in form, with a pseudocele body cavity and rounded or pointed ends.
asce American Society of Civil Engineers
ascb American Society for Cell Biology
- Ascaris lumbricoides
ascaris lumbricoides Ascaris lumbricoides Ascaris lum·bri·coi·des (lŭm’brĭ-koi’dēz) n. A common roundworm that is parasitic in the intestines of humans and that causes restlessness, fever, and sometimes diarrhea.
- Aschheim-zondek test
a test used to detect whether a woman is pregnant by noting the effect on the ovaries of an immature mouse or rabbit injected with her urine.
- Aschoff body
any of the spindleshaped nodules found in heart tissue and associated with the myocarditis of rheumatic fever. Aschoff body Asch·off body (āsh’ôf’, ä’shôf’) n. A granulomatous inflammation characteristic of acute rheumatic carditis, consisting of fibrinoid changes in connective tissue and lymphocytes.