Merriam-Webster unabridged Popular in Grammar & Usage See More Using Bullet Points ( • ) How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-) Homophones, Homographs, and Homonyms Words You Always Have to Look Up Democracy or Republic: What's the difference?
Definitions from The American Heritage® Dictionary of the English Language, 5th Edition. adjectiveOriginating, located, or occurring outside Earth or its atmosphere. nounAn extraterrestrial being or life form. from The Century Dictionary. Occurring outside of the earth; extramundane. ...
extraterrestrial meaning, definition, what is extraterrestrial: a creature that people think may exist o...: Learn more.
例句Examples 筆順Strokes 字Character 字源Etymology Settings extraterrestrial ,ɛkstrətə'rɛstriːəl Main English Definition (形) As an adjective Extraterrestrial. (名) As a noun A form of life assumed to exist outside the Earth or its atmosphere. ...
4. Handedness and homochirality: inherent weaknesses Kelvin's century-old, rock-solid definition of chirality does not leave any place for ambiguity as to what is a chiral object: "I call any geometrical figure, or group of points, chiral, and say it has chirality, if its image in a pl...
including the definition of life, the ethics of space exploration, the possibility of interstellar communication, and the cognitive challenges of defining intelligence [4]. Engaging with these questions can deepen our understanding of ourselves, our values, and our relationship with the cosmos. Even ...
Autotroph | Definition & Examples from Chapter 23 / Lesson 8 200K What is an autotroph? Learn the definition of the term autotroph and contrast this with a heterotroph. Learn the types of autotrophs and some common examples. Related to this Ques...
Sedimentary volcanism is a widespread geological phenomenon on Earth. Similar processes are theorized to occur on extraterrestrial bodies like Mars, potentially representing surface expressions of subsurface liquid water reservoirs. As we are currently m
Definition of Life extraterrestriallife is because there is strong evidence that all life on this planet has a common origin. Chemically and genetically there are evolutionary links between all organisms that more or less reflect the more traditional attempts at linking them. This means, of course,...
including the definition of life, the ethics of space exploration, the possibility of interstellar communication, and the cognitive challenges of defining intelligence [4]. Engaging with these questions can deepen our understanding of ourselves, our values, and our relationship with the cosmos. Even ...