Akademik

teras
noun
(medicine) a grossly malformed and usually nonviable fetus
Syn: ↑monster
Derivationally related forms: ↑monstrous (for: ↑monster)
Topics: ↑medicine, ↑medical specialty
Hypernyms: ↑fetus, ↑foetus
Part Meronyms: ↑acardia, ↑acephalia, ↑acephaly, ↑acephalism

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teras /terˈəs/ (biology and pathology)
noun (pl terˈata)
A monstrosity
ORIGIN: Gr teras, -atos monster
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terˈatism noun
1. A monster
2. A malformed person or animal, esp in the fetal stage

Useful english dictionary. 2012.