science

Lockjaw

Lockjaw 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 Lockjaw rather than just read about it. In short: Lockjaw can refer to: Medical conditions and diseases Trismus, a pathological condition in which the mouth is held shut by sustained spasm of the masseter (jaw) muscle, often observed in cases of tetanus Tetanus, an infectious disease of the central nervous system Temporomandibular joint dysfunction or TMD, often erroneously called TMJ Music Eddie "Lockjaw" Davis, American jazz saxophonist Lockjaw (band), an English…

Key takeaways

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

Reference excerpt

Lockjaw can refer to:

Medical conditions and diseases Trismus, a pathological condition in which the mouth is held shut by sustained spasm of the masseter (jaw) muscle, often observed in cases of tetanus Tetanus, an infectious disease of the central nervous system Temporomandibular joint dysfunction or TMD, often erroneously called TMJ

Music Eddie "Lockjaw" Davis, American jazz saxophonist Lockjaw (band), an English punk band from the 1970s Lockjaw (album), a 1995 album by Dance Hall Crashers Lockjaw (EP), a 2013 EP by Flume and Chet Faker "Lockjaw" (song), a 2016 song by American hip hop artist French Montana and Kodak Black "Lockjaw", a track which features American rapper Trunks and appears on the King Geedorah album Take Me to Your Leader "Lockjaw", a track from the album Mack Daddy by Sir Mix-a-Lot

Other uses Lockjaw (character), a character from Marvel Comics' Inhumans Locust Valley Lockjaw, an upper-class American accent Steven J. Lockjaw, a character from One Battle After Another Lochjaw, a 1982 video game by Games by Apollo later renamed to Shark Attack

Worked examples

Example 1 — a first encounter with Lockjaw

Start with the simplest possible case. Write down what Lockjaw 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 Lockjaw 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 Lockjaw 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 Lockjaw

In research: Lockjaw 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 Lockjaw 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: Lockjaw is common in secondary-school and first-year university syllabi. It links to neighbouring topics Disambiguation pages, Obsolete medical terms, so understanding it makes those chapters shorter.
In everyday life: Look for Lockjaw 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 Lockjaw in 20 minutes

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

Frequently asked questions

What is Lockjaw in simple terms?

Lockjaw can refer to: Medical conditions and diseases Trismus, a pathological condition in which the mouth is held shut by sustained spasm of the masseter (jaw) muscle, often observed in cases of tetanus Tetanus, an infectious disease of the central nervous system Temporomandibular joint dysfunctio…

Why does Lockjaw 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 Lockjaw?

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 Lockjaw.