The phrase "aliens in general" is correct and usable in written English.
You can use it when discussing the concept of extraterrestrial beings broadly, without referring to specific types or instances.
Example: "In science fiction, aliens in general are often portrayed as either hostile or benevolent beings."
Alternatives: "extraterrestrials overall" or "foreign beings in general".
We discuss five possible research avenues to better understand the relationships between ecology and evolution in the success of Poaceae, and of alien plants in general.
Matt Bellamy stated that he finds "the unknown in general a stimulating area for the imagination", and this interest is reflected throughout the album, which features alien invasion (in "Exo-Politics") and rebellious paranoia (particularly during "Assassin").
The foreign secretary labelled the organisation "a brutal terrorist group whose ideology is alien to this country and to the Middle East in general".
Many publications and websites use the pixelated alien graphic as an icon for video games in general, including video game magazine Electronic Gaming Monthly, technology website Ars Technica, and concert event Video Games Live.
In general, practical utilization of introgressed alien germplasm demands precise genetic manipulation to separate linked beneficial and deleterious alien genes, for which numerous markers are essential.
In general, the establishment of tropical invasive aliens may cause Mediterranean communities to lose their particular character [405] and to become similar to their tropical analogs, especially in the southern portions of the basin [406].
"Narcotics trafficking, alien smuggling, car theft, money laundering and organized crime in general are on the increase in Guatemala," Mr. Simons said.
Architecture in general has become an excuse for illegal aliens to take three days obediently piling plastic and aluminum into a gigantic square of Lego.
In general, Medicaid is available only to United States citizens and certain "qualified aliens".
