science

Nasal emission

Nasal emission 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 Nasal emission rather than just read about it. In short: Nasal emission is the abnormal passing of oral air through a cleft palate, or from some other type of velopharyngeal inadequacy (VPI), during the production of a consonant that requires a buildup of oral air pressure for proper pronunciation, such as /p/ or /s/. The escaping air tends to reduce the oral air pressure and impede the proper production of the consonant.

Key takeaways

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

Reference excerpt

Nasal emission is the abnormal passing of oral air through a cleft palate, or from some other type of velopharyngeal inadequacy (VPI), during the production of a consonant that requires a buildup of oral air pressure for proper pronunciation, such as /p/ or /s/. The escaping air tends to reduce the oral air pressure and impede the proper production of the consonant. Secondary effects sometimes noted with nasal emission are the development of improper compensatory pronunciation habits, including using a very soft voice that uses less breath pressure. Nasal emission can be detected by a number of simple techniques, such as looking for the fogging of a mirror held under the nares or measured more definitively by means of a nasal pneumotachograph The measurement of nasal emission in consonants is linked with the measurement of nasalance in vowels under the term nasometry.

See also Nasalization Nasalance nasometry

References

Worked examples

Example 1 — a first encounter with Nasal emission

Start with the simplest possible case. Write down what Nasal emission 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 Nasal emission 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 Nasal emission 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 Nasal emission

In research: Nasal emission 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 Nasal emission 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: Nasal emission is common in secondary-school and first-year university syllabi. It links to neighbouring topics Nose, Phonetics, Speech disorders, so understanding it makes those chapters shorter.
In everyday life: Look for Nasal emission 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Nasal emission” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Nasal emission in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nasal emission 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 Nasal emission out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nasal emission in simple terms?

Why does Nasal emission 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 Nasal emission?

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 Nasal emission.