different between irregular vs fibrillation

English

Etymology

Borrowed from Old French irreguler, from Medieval Latin or Late Latin irr?gul?ris, from in- + regularis, equivalent to ir- +? regular.

Pronunciation

• (General American) IPA^(key): /?????j?l?/

Adjective

irregular (comparative more irregular, superlative most irregular)

1. nonstandard; not conforming to rules or expectations
2. (of a surface) rough
3. without symmetry, regularity, or uniformity
4. (geometry, of a polygon) not regular; having sides that are not equal or angles that are not equal
5. (geometry, of a polyhedron) whose faces are not all regular polygons (or are not equally inclined to each other)
6. (grammar, of a word) not following the regular or expected patterns of inflection in a given language

Synonyms

• (nonstandard): abnormal, singular; see also Thesaurus:strange
• (rough): coarse, salebrous; see also Thesaurus:rough
• (without uniformity): unstable, unsteady; see also Thesaurus:unsteady
• (not following the regular patterns of inflection): heteroclite

Antonyms

• regular

Derived terms

Translations

Noun

irregular (plural irregulars)

1. A soldier who is not a member of an official military force and who may not use regular army tactics.
2. One who does not regularly attend a venue.

Translations

Catalan

Etymology

Borrowed from Late Latin irr?gul?ris.

Pronunciation

• (Balearic, Central) IPA^(key): /i.r?.?u?la/
• (Valencian) IPA^(key): /i.re.?u?la?/

Adjective

irregular (masculine and feminine plural irregulars)

1. irregular

   Antonym: regular

Derived terms

• irregularment

Related terms

• irregularitat

Further reading

• “irregular” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “irregular” in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana.
• “irregular” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “irregular” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

Galician

Etymology

Borrowed from Late Latin irr?gul?ris.

Adjective

irregular m or f (plural irregulares)

1. irregular

   Antonym: regular

Related terms

• irregularidade

Further reading

• “irregular” in Dicionario da Real Academia Galega, Royal Galician Academy.

Portuguese

Etymology

Borrowed from Late Latin irr?gul?ris.

Adjective

irregular m or f (plural irregulares, comparable)

1. irregular; nonstandard
2. (grammar) irregular (not following an inflectional paradigm)

Antonyms

• regular

Derived terms

• irregularmente

Related terms

• irregularidade

Further reading

• “irregular” in Dicionário Priberam da Língua Portuguesa.

Spanish

Etymology

Borrowed from Late Latin irr?gul?ris.

Pronunciation

• IPA^(key): /ire?u?la?/, [i.re.??u?la?]

Adjective

irregular (plural irregulares)

1. irregular, uneven, erratic, haphazard
2. patchy, spotty, jagged, ragged
3. fitful
4. (grammar) (of a verb etc.) irregular

   Antonym: regular

Derived terms

• verbo irregular

Related terms

• irregularidad
• regular

Further reading

• “irregular” in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014.

English

Etymology

From New Latin fibrilla, diminutive of Latin fibra (“fiber”) in reference to the muscle strands of the heart.

Noun

fibrillation (countable and uncountable, plural fibrillations)

1. The rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart.

Derived terms

• atrial fibrillation
• defibrillation
• ventricular fibrillation

Related terms

• fiber
• fibrillate
• defibrillate
• defibrillator

Translations