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Periodic sentence

Periodic sentence 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 Periodic sentence rather than just read about it. In short: A periodic sentence is a sentence with a stylistic device featuring syntactical subordination to a single main idea, which usually is not complete until the very end of the sentence. The periodic sentence emphasizes its main idea by placing it at the end, following all the subordinate clauses and other modifiers that support the principal idea.

Key takeaways

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

Reference excerpt

A periodic sentence is a sentence with a stylistic device featuring syntactical subordination to a single main idea, which usually is not complete until the very end of the sentence. The periodic sentence emphasizes its main idea by placing it at the end, following all the subordinate clauses and other modifiers that support the principal idea. According to Merriam-Webster, the linguistic sense of the periodic sentence term was coined circa 1928, but there is evidence of its usage in a separate sense dating from 1766.

Characteristics A periodic sentence unfolds gradually, so that the thought contained in the subject/verb group only emerges at the sentence's conclusion. It is used mostly in what in oratory is called the grand style. It is the opposite of the loose sentence, also continuous or running style, where the subject and verb are introduced at the beginning of the sentence. Periodic sentences often rely on hypotaxis, whereas running sentences are typified by parataxis. Cicero is generally considered to be the master of the periodic sentence. Periodic sentences can be used to draw suspense and build curiosity via enticing the reader until a climatic point— the reveal of the sentence's main subject or verb.

Decline In English literature, the decline of the periodic sentence's popularity as identifiably grand style goes hand in hand with the development toward a less formal style, which some authors date to the beginning of the Romantic period, specifically the 1798 publication of the Lyrical Ballads, and the prevalence in twentieth-century literature of spoken language over written language. In American literature, scholars note the explicit rejection by Henry David Thoreau of the formal style of his time, of which the grand style of periodic sentence was characteristic. In his journal, Thoreau criticized those sentences as the "weak and flowing periods of the politician and scholar."

Rhetorical and literary usage Periodic sentences are rooted in the rhetorical techniques of Isocrates, who focused on a natural style that imitated how people speak. According to William Harmon, the periodic sentence is used "to arouse interest and curiosity, to hold an idea in suspense before its final revelation." In the words of William Minto, "the effect...is to keep the mind in a state of uniform or increasing tension until the dénouement." In his Handbook to Literature, Harmon offers an early example in American literature found in Longfellow’s "Snowflakes":

Out of the bosom of the Air, Out of the cloud-folds of her garment shaken, Over the woodlands brown and bare, Over the harvest-fields forsaken, Silent and soft, and slow, Descends the snow. Starting with a succession of parallel adverbial phrases ("Out of the bosom," "Out of the cloud-folds," "Over the woodlands," "Over the harvest-fields"), each followed by parallel modification ("of the air," "of her garment shaken," "brown and bare," "forsaken"), the sentence is left grammatically incomplete until the subject/verb group "Descends the snow". Other American examples cited include the opening lines of William Cullen Bryant's "A Forest Hymn" and lines 9-16 of his "Thanatopsis". A particularly long example is the opening stanza (lines 1-22) of Walt Whitman's "Out of the Cradle Endlessly Rocking"; another is the opening sentence of Milton's Paradise Lost. A well-known example of a periodic sentence occurs in Nikolai Gogol's short story "The Overcoat":

Even at those hours when the gray Petersburg sky is completely overcast and the whole population of clerks have dined and eaten their fill, each as best he can, according to the salary he receives and his personal tastes; when they are all resting after the scratching of pens and bustle of the office, their own necessary work and other people's, and all the tasks that an overzealous man voluntarily sets himself even beyond what is necessary; when the clerks are hastening to devote what is left of their time to pleasure; some more enterprising are flying to the theater, others to the street to spend their leisure staring at women's hats, some to spend the evening paying compliments to some attractive girl, the star of a little official circle, while some—and this is the most frequent of all—go simply to a fellow clerk's apartment on the third or fourth story, two little rooms with a hall or a kitchen, with some pretensions to style, with a lamp or some such article that has cost many sacrifices of dinners and excursions—at the time when all the clerks are scattered about the apartments of their friends, playing a stormy game of whist, sipping tea out of glasses, eating cheap biscuits, sucking in smoke from long pipes, telling, as the cards are dealt, some scandal that has floated down from higher circles, a pleasure which the Russian do never by any possibility deny himself, or, when there is nothing better to talk about, repeating the everlasting anecdote of the commanding officer who was told that the tail had been cut off the horse on the Falconet monument—in short, even when everyone, was eagerly seeking entertainment, Akaky Akakievich did not indulge in any amusement.

See also Euphuism

References

Worked examples

Example 1 — a first encounter with Periodic sentence

Start with the simplest possible case. Write down what Periodic sentence 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 Periodic sentence 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 Periodic sentence 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 Periodic sentence

In research
Periodic sentence 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 Periodic sentence 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
Periodic sentence is common in secondary-school and first-year university syllabi. It links to neighbouring topics Grammar, Rhetoric, so understanding it makes those chapters shorter.
In everyday life
Look for Periodic sentence 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 Periodic sentence in 20 minutes

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

Frequently asked questions

What is Periodic sentence in simple terms?

A periodic sentence is a sentence with a stylistic device featuring syntactical subordination to a single main idea, which usually is not complete until the very end of the sentence. The periodic sentence emphasizes its main idea by placing it at the end, following all the subordinate clauses and o…

Why does Periodic sentence 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 Periodic sentence?

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 Periodic sentence.

Tags

  • Grammar
  • Rhetoric

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