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Latin language · Russian-Latin Dictionary

Russian-Latin Medical Dictionary: Letters O, P

The lexical minimum for the letters O and P includes key anatomical formations, internal organ names, clinical symptoms, and basic pharmaceuticals. Fluency in these terms is essential for proper prescription writing, reading diagnoses, and understanding human body topography.

Organorgănum, i n or orgănon, i n
Powderpulvis, ĕris m
Edemaoedēma, ătis n
Humerushumĕrus, i m
5 min readFor medical studentsUpdated 09/24/2026
Material prepared by WhiteCoat Pro editorial team based on platform study guidesReviewed by medical editor: Aulov A. A., general practitioner · 09/24/2026

Anatomical Terminology

Terms beginning with O and P prominently feature names of internal organs, bone structures, the nervous system, and spatial formations.

Internal organs and structures:

  • Liver — hepar, ătis n
  • Pancreas — pancreas, ătis n
  • Kidney — ren, renis m
  • Prostate gland — prostāta, ae f
  • Esophagus — oesophăgus, i m
  • Colon — colon, i n
  • Rectum — rectum, i n
  • Urinary bladder — vesīca urināria
  • Gallbladder — vesīca biliāris

Osteology and membranes: Texts frequently feature terms describing bones and their elements. For example, vertebra — vertĕbra, ae f, while the first cervical vertebra (atlas) is designated separately as atlas, antis m. Humerus is denoted as humĕrus, i m, and calcaneus as calcaneus, i m.

Special attention should be paid to membranes. The general term membrane is tunĭca, ae f, whereas arachnoid mater has its own designation — arachnoidea, ae f. Membrane / web is translated as membrāna, ae f.

Openings, cavities, and pathways:

  • Opening, foramen — forāmen, ĭnis n
  • Opening (major, hiatus) — hiatus, us m
  • Opening (ostium) — ostium, i n
  • Cavity — cavĭtas, ātis f
  • Sinus — sinus, us m
  • Space, interval — spatium, i n
  • Meatus, passage — meātus, us m
  • Tract, pathway — tractus, us m

Pharmacology and prescription writing

The vocabulary contains names of numerous dosage forms, chemical compounds, and oils, as well as verbs essential for writing prescriptions.

Dosage forms and agents:

  • Decoction — decoctum, i n
  • Paste — pasta, ae f
  • Pill — pilŭla, ae f
  • Plaster, patch — emplastrum, i n
  • Powder — pulvis, ĕris m
  • Antidote — antidŏtum, i n

Plant oils: Genitive forms of plant names are used when prescribing oil solutions:

  • Olive oil — oleum Olivārum
  • Peach oil — oleum Persicōrum
  • Sunflower oil — oleum Helianthi

Purification of substances: The term "purified" is translated differently depending on the substance. For sulfur, depurātus, a, um is used; for sera and vaccines, purificātus, a, um; and for alcohol and turpentine, rectificātus, a, um.

Prescription verbs: Third-conjugation verbs are regularly used in prescriptions: to prescribe (praescrībo, ĕre), to take (sumo, ĕre), to repeat (repĕto, ĕre).

Test your knowledge on this topicTasks from the "Latin Language" course bank — instant answers and explanations.

Clinical diagnoses and processes

Medical practice requires precise descriptions of pathological conditions and examination methods.

Pathological conditions:

  • Tumor can be designated by three terms: tumor, ōris m; blastōma, ătis n; neoplasma, ătis n.
  • Edema — oedēma, ătis n
  • Burn — combustio, ōnis f
  • Fracture — fractūra, ae f
  • Pneumonia — pneumonia, ae f
  • Bed sore, pressure ulcer — decubitus, us m
  • Defect, vitium — vitium, i n

Procedures and examination methods: Physicians use palpation (feeling) — palpatio, ōnis f and percussion (tapping) — percussio, ōnis f to examine a patient. Invasive interventions are also common: puncture — punctio, ōnis f and transfusion — transfusio, ōnis f.

When describing the course of a disease, characteristics such as acute (acūtus, a, um), subacute (subacūtus, a, um), progredient / progressive (progrediens, entis), and complicated (complicātus, a, um) are used.

Briefly: answers to topical questions

How are the Latin names of intestinal segments starting with O and P translated: colon, rectum, ileum?

  • Colon — colon, i n.
  • Rectum — rectum, i n.
  • Ileum — ileum, i n.

How to translate prescription verbs starting with the letter P into Latin: to prescribe, to prepare, to filter?

  • To prescribe — praescrībo, ĕre III.
  • To prepare — paro, āre I; praepăro, āre I.
  • To filter — translation is missing in the provided sources.

How to correctly prescribe herbal oils in prescriptions: olive, peach, sunflower, fir?

  • Olive oil — oleum Olivārum.
  • Peach oil — oleum Persicōrum.
  • Sunflower oil — oleum Helianthi.
  • Fir oil — translation is missing in the provided sources.

How are the names of internal organs starting with P translated into Latin: liver, kidney, pancreas, esophagus, prostate gland, parathyroid gland?

  • Liver — hepar, ătis n.
  • Kidney — ren, renis m.
  • Pancreas — pancreas, ătis n.
  • Esophagus — oesophăgus, i m.
  • Prostate gland — prostāta, ae f.
  • Parathyroid gland — the sources provide glandula parathyroidea as a dictionary combination and glandulae parathyroideae in the plural form.

How to translate clinical diagnoses starting with P into Latin: pneumonia, pressure ulcer, pleurisy, peritonitis?

  • Pneumonia — pneumonia, ae f.
  • Pressure ulcer — decubitus, us m.
  • Pleurisy — pleuritis, pleuritĭdis.
  • Peritonitis — peritonitis, peritonitĭdis.

How to translate anatomical terms starting with P: sinus, cavity, passage, pathway, septum, chiasm?

  • Sinus — sinus, us m.
  • Cavity — cavĭtas, ātis f.
  • Passage — meātus, us m.
  • Pathway, tract — tractus, us m.
  • Septum — septum, i n.
  • Chiasm — chiasma, ătis n; in the nervous system — decussatio, ōnis f.

How are bones starting with P translated into Latin: vertebra, humerus, calcaneus, metatarsal bone?

  • Vertebra — vertĕbra, ae f.
  • Humerus — humĕrus, i m.
  • Calcaneus — calcaneus, i m.
  • Metatarsal bones — ossa metatarsi.

How are the names of cranial nerves starting with O translated into Latin: olfactory, abducens, oculomotor?

  • Olfactory nerve — nervus olfactorius.
  • Abducens nerve — nervus abducens.
  • Oculomotor nerve — nervus oculomotorius.
How to memorize

Pay attention to the translation of the word "fetus/fruit". If referring to a botanical fruit (e.g., of a plant), the term fructus, us m is used. If referring to a human or animal womb fetus — fetus, us m.

Class and exam questions

How to correctly translate "purified" in a prescription?

The choice of term depends on the substance being purified. For solid inorganic substances (sulfur), use depurātus. For biological preparations (serum) — purificātus. For liquids that have undergone distillation (alcohol) — rectificātus.

What is the difference between foramen, hiatus, and ostium?

Foramen is a typical anatomical opening (often in a bone). Hiatus designates a cleft or a large, gaping opening. Ostium is usually applied to the orifice or entrance into a hollow organ.

How are muscles designated by their function?

The dictionary presents masculine noun-muscles ending in -or. For example: depressor muscle — depressor, elevator — levātor, abductor — abductor, adductor — adductor, pronator — pronātor.

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What else to study on this topic

  • Adjectives of spatial arrangement (anterior, right, proximal, superficial).
  • Greek and Latin equivalents of anatomical structures (lower back: lumbi / psoa, cavity: caverna / antrum).
  • Nomenclature of salts: oxides, peroxides, and basic carbonates.
  • Names of antibiotics and synthetic drugs starting with letters O and P.

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