#latin phrase

• ab absurdo - A Latin phrase meaning 'from the absurd'. It is used in medical logic, bioethics, and forensic expert reports to prove a clinical truth or a cause of death by demonstrating that any alternative hypothesis would lead to an impossible or contradictory conclusion.
• Ab antiguo - An old graphical or medical variant for 'ab antiquo', meaning 'from ancient times' or 'since antiquity'. In a medical context, bioethics, and clinical deontology, it is used to refer to treatment principles, ethical rules (such as the Hippocratic Oath), or therapeutic practices that have been established and recognized as valid since ancient times.
• ab antique - A medieval graphical or alternative variant for the phrase 'ab antiquo', meaning 'since antiquity'. In clinical medical language and bioethics, it refers to customs, ancestral deontological standards, or patient-care principles passed down through generations, whose moral authority is recognized due to their age.
• ab antiquo - The classical and correct Latin form for 'from ancient times' or 'since antiquity'. In toxicology, pharmacognosy, and medical ethics, it is used to emphasize that certain therapeutic effects, prohibitions (e.g., using poisons for political or medical purposes), or professional oaths have been in force and respected since the earliest times of human civilization.
• Ab hoc et ab hac - A Latin phrase literally translated as 'from this one and from that one' or 'about this and about that'. In clinical psychology, neurology, and psychiatry, it describes a chaotic, incoherent speech with no logical connection between ideas, typical of patients experiencing delirium episodes, dementia, acute mental confusion, or severe intoxication with psychoactive substances.
• ab initio - A Latin phrase meaning 'from the beginning' or 'from first principles'. In biochemistry and computational pharmacology, it refers to calculations or simulations based strictly on the laws of quantum mechanics, without relying on preexisting empirical data (e.g., ab initio protein folding). In forensic medicine, it describes an act, toxic exposure, or pathological condition present from the very start.
• ab origine - A Latin phrase meaning 'from the origin' or 'from the very beginning'. In medical genetics and embryology, it is used to describe a chromosomal anomaly, congenital malformation, or metabolic disorder present in the organism's biological framework since the moment of conception (ab origine), as opposed to conditions acquired later in life.
• ab ovo - A Latin phrase derived from Horace's writings, meaning literally 'from the egg'. In embryology and developmental toxicology, it refers to analyzing a biological process, cellular mechanism, or the action of a teratogenic agent (malformation-inducing toxin) traced right from the egg-cell (zygote) stage or from the moment of fertilization to fully map fetal development disruptions.
• ab ovo usque ad mala - A Latin phrase from Horace's Satires, literally meaning 'from the egg to the apples' (referring to the traditional course of a Roman banquet). In academic, medical, and psychological contexts, it is used metaphorically to describe an exhaustive, comprehensive, and chronological analysis of a phenomenon, pathology, or individual development, covering the entire spectrum from the absolute origin to the final phase of manifestation.
• ab uno disce omnes - A Latin phrase from Virgil's Aeneid, literally meaning 'from one learn all'. In clinical and epidemiological contexts, it is used to describe a typical case or a representative sample within a population, suggesting that the detailed analysis of a single characteristic subject allows for the understanding of the general manifestations of an entire pathology or epidemic.
• ab urbe condita - A Latin phrase meaning literally 'from the founding of the city' (referring to the foundation of Rome in 753 BC). In academic contexts and the history of medical sciences, it is used metaphorically to date or describe an event, institution, or school of thought analyzed right from the official moment of its establishment or fundamental structuring.