science

Ibn Sidah

Ibn Sidah is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ibn Sidah rather than just read about it. In short: Abū’l-Ḥasan ʻAlī ibn Ismāʻīl (أبو الحسن على بن اسماعيل), known as Ibn Sīdah (ابن سيده), or Ibn Sīdah'l-Mursī (ابن سيده المرسي), (c.1007-1066), was a linguist, philologist and lexicographer of Classical Arabic from Andalusia. He compiled the encyclopedia al-Kitāb al-Mukhaṣṣaṣ (المخصص) (Book of Customs) and the Arabic-language dictionary Al-Muḥkam wa-al-muḥīt al-aʻẓam (المحكم والمحيط الأعظم) ("the great and comprehens…

Key takeaways

Ibn Sidah belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ibn Sidah to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ibn Sidah from memory before moving on to harder problems.

Reference excerpt

Abū’l-Ḥasan ʻAlī ibn Ismāʻīl (أبو الحسن على بن اسماعيل), known as Ibn Sīdah (ابن سيده), or Ibn Sīdah'l-Mursī (ابن سيده المرسي), (c.1007-1066), was a linguist, philologist and lexicographer of Classical Arabic from Andalusia. He compiled the encyclopedia al-Kitāb al-Mukhaṣṣaṣ (المخصص) (Book of Customs) and the Arabic-language dictionary Al-Muḥkam wa-al-muḥīt al-aʻẓam (المحكم والمحيط الأعظم) ("the great and comprehensive arbiter"). His contributions to language, literature, and logic were considerable.

Life Ibn Sīdah was born in Murcia in eastern Andalusia. The historian Khalaf ibn ʻAbd al-Malik Ibn Bashkuwāl (ابن بشكوال) (1183-1101) in his book Kitāb aṣ-Ṣilah (كتاب الصلة) (Book of Relations) gives Ismāʻīl as the name of his father, in agreement with name given in the Mukhassas. However Al-Fath ibn Khaqan in mathmah al-anfus (مطمح الأنفس) has the name Aḥmad. Yaqut al-Hamawi in The Lexicon of Literature, says Ibn Sīdah ('son of a woman') was his nickname. Remarkably both he and his father were blind. His father was a sculptor although it seems the disciplines he devoted his life to, philology and lexicography, had been in his family. Mohammed ibn Ahmed ibn Uthman Al-Dhahabi's biographic encyclopedia Siyar A'lam al-Nubala (سير أعلام النبلاء) (Lives of The Noble Scholars) is the main biographic source. He lived in the taifa principality of "Dénia and the Eastern Islands" (طائفة دانية والجزائر الشرقية) under the rule of Emir Mujahid al-Amiri al-Muwaffaq (الأمير مجاهد العامري) (1044-1014) and he travelled to Mecca and Medina. He studied in Cordova under the renowned grammarian Abu al-Sa'ad ibn al-Hasan al-Rubai al-Baghdadi (أبو العلاء صاعد بن الحسن الربعي البغدادي) (d.417AH/1026AD) exiled in Andalusia, and with Abu Omar al-Talmanki (أبي عمر الطلمنكي) (429-340AH). He died in Dénia.

Works al-Mukhaṣṣaṣ (المخصص) 'Allowance' (20 vols) Al-Muḥkam wa-al-muḥīt al-ʾaʿẓam (المحكم والمحيط الأعظم) (Beirut, 2000); Arabic dictionary, 11 vols. A principal source for the famous Lisān al-ʿArab dictionary by the great thirteenth-century lexicographer Ibn Manzur. al-muḥkam wa al-muḥīṭ ul-ʾaʿẓam (المحكم والمحيط الأعظم) 'The Great Comprehensive Reference' al-ʾunīq (الأنيق) 'The Elegant' šarʿ ʾiṣlāḥ al-Muntaq (شرح إصلاح المنطق) 'Commentary on the Reform of Logic' šarʿ ma ʾaškāl min shaʿr al-Mutanabbī (شرح ما أشكل من شعر المتنبي) 'Commentary on Forms of al-Mutanabbi (al-Kindi)'s Poems' al-ʿalām fi l-luġa ʿala al-ʾaǧnās (العلام في اللغة على الأجناس) 'Science of Languages of Nations' al-ʿālam wa l-Mutaʿallam (العالم والمتعلم) 'Knowledge and the Student' al-Wāfī fi ʿalam ʾaḥkām al-Quwāfī (الوافي في علم أحكام القوافي) 'Science of Rhyme Provision' al-ʿawīs fi sharʿ ʾIslāḥ l-Munṭaq (العويص في شرح إصلاح المنطق) 'Sharp Explanation of Logic' šarʿ Kitāb al-ʾAḫfash (شرح كتاب الأخفش) 'Commentary on Book of the Hidden' as-samāʾ wa l-ʿālam (السماء والعالم) 'Heaven and Earth' al-ʿālam fi l-Luġah (العالم في اللغة) 'Philology' šawāḏ al-Luġah (شواذ اللغة) 'Oddities (outliers) of the Language' Al-Muḥkam wa l-Muḥīt al-ʾAʿẓam (المحكم والمحيط الأعظم) 'The Great and Comprehensive Arbitrator'.

References

Worked examples

Example 1 — a first encounter with Ibn Sidah

Start with the simplest possible case. Write down what Ibn Sidah claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ibn Sidah before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ibn Sidah ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ibn Sidah

In research: Ibn Sidah appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ibn Sidah in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ibn Sidah is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1000s births, 1066 deaths, 11th-century biographers, so understanding it makes those chapters shorter.
In everyday life: Look for Ibn Sidah outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Ibn Sidah in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ibn Sidah means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ibn Sidah out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ibn Sidah in simple terms?

Why does Ibn Sidah matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ibn Sidah?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ibn Sidah.