What does abortus mean?
Abortus is a clinical noun referring to the fetus or products of conception expelled from the womb before viability, whether through spontaneous miscarriage or induced abortion. It belongs almost entirely to medical language: pathologists may examine an abortus to look for chromosomal abnormalities, and obstetric records may note its complete or incomplete expulsion. The word derives directly from Latin, where abortus is the past participle of aboriri, meaning to miscarry or perish, sharing its root with 'abortion' and 'abortive'. A second, related sense appears in microbiology, where the name Brucella abortus identifies the bacterium responsible for contagious abortion in cattle and, transmitted to humans through unpasteurised milk, for brucellosis. Because of this dual life in human obstetrics and veterinary disease, abortus is a precise, formal term with no place in casual conversation, but it remains indispensable in scientific writing where exactness about pregnancy loss matters.
nounA medical and veterinary term denoting the fetus or product of conception expelled from the womb before it is viable, especially as a result of abortion or miscarriage. It is also used in taxonomy as the name of bacterial subspecies associated with abortion, such as Brucella abortus.
- The fetus or products of conception expelled from the uterus before viability, whether by spontaneous miscarriage or induced abortion.
- In microbiology and veterinary medicine, a designation of organisms associated with abortion, notably Brucella abortus, the bacterium causing contagious abortion in cattle.
"The pathologist examined the abortus to determine whether a chromosomal abnormality had caused the miscarriage."
"Cytogenetic analysis of the abortus revealed a trisomy that explained the early pregnancy loss."
"Brucella abortus was first identified as the cause of infectious abortion in dairy herds."
English medical texts typically pluralise as 'abortuses'; the Latin fourth-declension plural 'abortus' appears occasionally in older or more classical writing.
"The laboratory received several abortuses for karyotypic analysis over the course of the study."
The same Latin word that names lost pregnancies also names a cattle bacterium: Brucella abortus causes contagious abortion in cows and gives its name to undulant fever in humans.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of abortus
Abortus comes straight from Latin, where it is the past participle of aboriri, a compound of ab- ('away from') and oriri ('to arise, be born'), hence 'to fail to be born' or 'to miscarry'. English medicine adopted the Latin form directly, preserving its classical shape rather than anglicising it. It shares this root with 'abortion' and 'abortive', all descending from the same Latin verb. Its modern taxonomic use in Brucella abortus reflects nineteenth-century bacteriology's habit of naming organisms after the diseases they cause.
Related word forms
How abortus is actually used
Strictly clinical and technical in register; rarely encountered outside pathology reports, obstetric literature, and microbiology. It carries no colloquial usage and should not be substituted casually for 'miscarriage' or 'abortion' in everyday speech.
Easily confused with abortus
Abortion refers to the process or act of ending a pregnancy, whereas abortus refers specifically to the fetus or tissue expelled as its result.