Definitions of undulatory theory. (physics) the theory that light is transmitted as waves. synonyms: wave theory, wave theory of light. Antonyms: corpuscular theory, corpuscular theory of light. (physics) the theory that light is transmitted as a stream of particles.
What is a synonym for undulation?
Some common synonyms of undulate are fluctuate, oscillate, sway, swing, vibrate, and waver. While all these words mean to move from one direction to its opposite, undulate suggests a gentle wavelike motion.
How does Undulatory locomotion work?
Undulatory locomotion is a means of self-propulsion that relies on the generation and propagation of waves along a body. As a mode of locomotion it is primitive and relatively simple, yet can be remarkably robust.
What is undulation in fish?
Indeed, the undulations can be described as a wave that travels down the length of the fish, reaching maximum amplitude at the end of the caudal fin. … In many cases, the undulation is confined mostly (although not entirely) to the caudal fin.
What is a undulation meaning?
1a : a rising and falling in waves. b : a wavelike motion to and fro in a fluid or elastic medium propagated continuously among its particles but with little or no permanent translation of the particles in the direction of the propagation : vibration.
What Animals use undulation?
Undulatory locomotion is the type of motion characterized by wave-like movement patterns that act to propel an animal forward. Examples of this type of gait include crawling in snakes, or swimming in the lamprey.
What does Dorado mean?
The Spaniards called the city ruled by this flamboyant monarch El Dorado, Spanish for gilded one, and the story of the gold-covered king eventually grew into a legend of a whole country paved with gold. These days, El Dorado can also used generically for any place of vast riches, abundance, or opportunity.
What does undulating terrain mean?
having a shape like a wave or moving up and down like a wave. undulating countryside/fields/terrain/ground. The land is gently undulating.
What is the meaning of Incocate?
: to teach and impress by frequent repetitions or admonitions.
How do fish propel forward in water?
Fish swim by flexing their bodies and tail back and forth. Fish stretch or expand their muscles on one side of their body, while relaxing the muscles on the other side. This motion moves them forward through the water. Fish use their back fin, called the caudal fin, to help push them through the water.
What is the Locomotory organ of snake?
Unlike mammals which primarily use their legs, snakes and reptiles tend to use their bodies and spine as a major part of locomotion. There are four basic kinds of snake movement: Lateral (horizontal) undulation, concertina movement, side winding and rectilinear.
What is Anguilliform swimming?
anguilliform swimming A type of swimming practised by highly flexible fish such as eels, in which most of the body length undulates such that over a half a sinusoidal wave is formed.
What is difference between undulation and oscillation?
As verbs the difference between oscillate and undulate is that oscillate is to swing back and forth, especially if with a regular rhythm while undulate is to cause to move in a wavelike motion.
What is Subcarangiform?
subcarangiform (not comparable) Describing a mode of swimming by fish in which most of the propulsion is provided by the tail but some is provided by movements of the body.
What is Subcarangiform swimming?
A type of swimming practised by fish in which undulations are limited to the caudal (tail) regions with the body bending into less than one half of a sinusoidal wave form.
What does unimpeded mean?
: not slowed, blocked, or interfered with : not impeded an unimpeded view providing unimpeded access
What does Hummocked mean?
1 : a rounded knoll or hillock. 2 : a ridge of ice.
What is the law of undulation?
Their nearest approach to constancy, therefore, is undulationthe repeated return to a level from which they repeatedly fall back, a series of troughs and peaks.
Why do snakes undulate?
In other environments, snakes and other animals undulate for locomotion. They’re pushing against their environment on the ground or they’re pushing against water while swimming, says Yeaton. If you stop undulating in that case, you stop moving.
What is friction animals?
Friction is the force that pushes back on any movement of two objects in contact with each other. … The force of friction due to movement through air or water is called resistance. Gravity is the force that pulls all objects that have mass toward each other.
What do fish use for locomotion?
Most fishes generate thrust using lateral movements of their body and caudal fin, but many other species move mainly using their median and paired fins. The latter group swim slowly, but can turn rapidly, as is needed when living in coral reefs for example.
What fish is dorado in English?
In parts of the Pacific and along the English-speaking coast of South Africa, the mahi-mahi is commonly referred to by its name in Spanish, dorado.
What El Camino means?
El Camino is Spanish for ‘the way’. The title of the movie references the car in which Jesse makes his escape at the end of the series finale.
What is the El Dorado myth?
The legend of El Dorado is popular folklore, and even ensnared Sir Walter Raleigh. The lust for gold spans all eras, races, and nationalities. To possess any amount of gold seems to ignite an insatiable desire to obtain more. Through the centuries, this passion gave rise to the enduring tale of a city of gold.
How do you use undulate in a sentence?
Undulate in a Sentence
- The dancers’ movements were arranged so that they seemed to undulate like dolphins with the music.
- Because the ice skater had practiced her movements so much, she seemed to undulate on the ice.
- It is fun to watch the ocean waters undulate beneath our glass-bottom boat.
How do you pronounce undulate?
What is the meaning of undulating and rough terrains?
Undulating terrain simply means a terrain which is shaped like a wave. … While rough terrain terrain does not have a smooth surface.
What does propitiation mean in the dictionary?
Propitiation is the act of gaining the favor of or making things right with someone, especially after having done something wrong. Propitiation is the noun form of the verb propitiate, meaning to appease or gain the favor of. Close synonyms of propitiation are conciliation and appeasement.
Is negative word inculcated?
The connotation is more positive, and the word is usually used by speakers who agree with the values that are being instilled– whereas we tend to call the inculcation of wrong ideas indoctrination.
What does admonition mean in the Bible?
1 : gentle or friendly reproof remembered the admonition to keep it simple.