bifocal
Russian Translation(s) & Details for 'bifocal'
English Word: bifocal
Key Russian Translations:
- бифокальные [bʲɪfɐˈkalʲnɨje] - [Formal, Technical]
Frequency: Low (This term is specialized and rarely used in everyday conversation, primarily in medical or optical contexts.)
Difficulty: B2 (Intermediate; requires familiarity with technical vocabulary and Russian adjective declensions, as per CEFR standards.)
Pronunciation (Russian):
бифокальные: [bʲɪfɐˈkalʲnɨje]
Note on бифокальные: The stress falls on the third syllable ("kal"), which is common in Russian adjectives. Be mindful of the palatalized 'l' sound, which can be challenging for English speakers. Pronunciation may vary slightly in fast speech.
Audio: []
Meanings and Usage:
Referring to lenses with two focal points (e.g., in eyeglasses)
Translation(s) & Context:
- бифокальные очки - Used in formal or medical contexts when discussing corrective eyewear, such as for presbyopia.
Usage Examples:
-
Эти бифокальные очки помогают мне видеть как вдаль, так и вблизи.
These bifocal glasses help me see both far away and up close.
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Врач рекомендовал бифокальные линзы для улучшения зрения.
The doctor recommended bifocal lenses to improve vision.
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Бифокальные очки часто используются пожилыми людьми с проблемами зрения.
Bifocal glasses are often used by elderly people with vision problems.
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В оптике я купил бифокальные оправы для ежедневного ношения.
At the optics store, I bought bifocal frames for daily wear.
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Технология бифокальных линз развивалась на протяжении веков в оптике.
The technology of bifocal lenses has developed over centuries in optics.
Russian Forms/Inflections:
"Бифокальные" is an adjective derived from foreign roots, following standard Russian adjective declension patterns. It is invariable in gender but changes based on case, number, and agreement with nouns.
Case | Singular Masculine | Singular Feminine | Singular Neuter | Plural |
---|---|---|---|---|
Nominative | бифокальный | бифокальная | бифокальное | бифокальные |
Genitive | бифокального | бифокальной | бифокального | бифокальных |
Dative | бифокальному | бифокальной | бифокальному | бифокальным |
Accusative | бифокальный (animate)/бифокальное (inanimate) | бифокальную | бифокальное | бифокальные |
Instrumental | бифокальным | бифокальной | бифокальным | бифокальными |
Prepositional | бифокальном | бифокальной | бифокальном | бифокальных |
Note: This follows regular first-declension adjective rules. If used in a compound phrase like "бифокальные очки," it agrees with "очки" (plural feminine).
Russian Synonyms/Antonyms:
- Synonyms: мультифокальные (multifocal) - Similar but implies more than two focal points; often used interchangeably in modern contexts. прогрессивные (progressive) - Refers to seamless multifocal lenses.
- Antonyms: монокальные (monofocal) - Refers to lenses with a single focal point, contrasting with bifocal designs.
Related Phrases:
- бифокальные линзы - Bifocal lenses; used in discussions of corrective optics and eye care.
- очки с бифокальными стёклами - Glasses with bifocal lenses; a common phrase in retail or medical settings, emphasizing the lens type.
- бифокальная коррекция зрения - Bifocal vision correction; refers to treatments or procedures in ophthalmology.
Usage Notes:
"Бифокальные" directly corresponds to the English "bifocal" in technical contexts, such as optics or medicine, but is less common in everyday Russian speech. It is typically used in formal settings like doctor-patient conversations or product descriptions. When choosing between translations, opt for "бифокальные" for precise optical references; avoid casual equivalents as none exist. Grammatically, ensure it agrees with the noun it modifies (e.g., in gender, number, and case). English learners should note that Russian often pairs this with nouns like "очки" (glasses) for clarity.
Common Errors:
Error: Using "бифокаль" as a standalone noun instead of an adjective. Correct: "Бифокальные очки" (not just "бифокаль"). Explanation: Russian adjectives must agree with nouns; this mistake can make the sentence grammatically incorrect and confusing.
Error: Incorrect declension, e.g., saying "бифокальный очки" (wrong gender agreement). Correct: "бифокальные очки" (plural feminine). Explanation: "Очки" is always plural and feminine, so the adjective must match; this is a common pitfall for learners unfamiliar with Russian noun genders.
Cultural Notes:
In Russian culture, bifocal lenses are often associated with aging and eye health, reflecting broader societal emphasis on accessible healthcare. The invention of bifocals is credited to Benjamin Franklin, and this historical tie is sometimes mentioned in Russian educational contexts, highlighting cross-cultural exchanges in science.
Related Concepts:
- мультифокальные
- прогрессивные линзы
- офтальмология