Background for synapsids
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synapsids

/sɪˈnæpsɪdz/

Meanings
noun
Any animal (including all mammals) of the class Synapsida.

Examples :

"While dinosaurs ruled the land, synapsids, the ancestors of mammals, were evolving in the shadows. "
animal biology organism

Related Words

Illustration ruled

ruled verb

/ɹuːld/

To regulate, be in charge of, make decisions for, reign over.

"The principal ruled that students could wear hats on Fridays. "

Illustration evolving

evolving verb

/ɪˈvɑlvɪŋ/ /iˈvɑlvɪŋ/

To move in regular procession through a system.

"At the graduation ceremony, the students were evolving down the aisle towards the stage in a slow, organized line. "

Illustration ancestors

ancestors noun

/ˈæn.sɛs.təz/ /ˈæn.sɛs.tɚz/

One from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a forefather.

"My ancestors came from Ireland during the potato famine. "

Illustration including

including verb

/ɪnˈkluːdɪŋ/

To bring into a group, class, set, or total as a (new) part or member.

"I will purchase the vacation package if you will include car rental."

Illustration mammals

mammals noun

/ˈmæməlz/

An animal of the class Mammalia, characterized by being warm-blooded, having hair and feeding milk to its young.

"My pet cat is a mammal, and so are my dogs. "

Illustration class

class noun

/klas/ /kleəs/

A group, collection, category or set sharing characteristics or attributes.

"Often used to imply membership of a large class."

Illustration shadows

shadows noun

/ˈʃædəʊz/ /ˈʃædoʊz/

A dark image projected onto a surface where light (or other radiation) is blocked by the shade of an object.

"My shadow lengthened as the sun began to set."

Illustration dinosaurs

dinosaurs noun

/ˈdaɪnəˌsɔrz/ /ˈdaɪnəˌsɔərz/

In scientific usage, any of the animals belonging to the clade Dinosauria, especially those that existed during the Triassic, Jurassic and Cretaceous periods and are now extinct.

"Many children are fascinated by dinosaurs, especially the huge ones that lived millions of years ago. "

Illustration were

were noun

/wɜːr/ /wər/

A man, a husband

"The were in my family is a kind and supportive man. "

Illustration while

while noun

/waɪl/

An uncertain duration of time, a period of time.

"He lectured for quite a long while."

Illustration land

land noun

/lænd/

The part of Earth which is not covered by oceans or other bodies of water.

"Most insects live on land."

Illustration animal

animal noun

/ˈænɪməl/

In scientific usage, a multicellular organism that is usually mobile, whose cells are not encased in a rigid cell wall (distinguishing it from plants and fungi) and which derives energy solely from the consumption of other organisms (distinguishing it from plants).

"A cat is an animal, not a plant. Humans are also animals, under the scientific definition, as we are not plants."