of or noting organic compounds essentially in chemical behavior but differing structurally in that the essential carbon atoms are connected in a ring instead of a chain.
(of an organic compound) having aliphatic properties, in spite of the presence of a ring of carbon atoms
alicyclic al·i·cy·clic (āl’ĭ-sī’klĭk, -sĭk’lĭk)
Of or relating to organic compounds having both aliphatic and cyclic characteristics or structures.
(in plane-tabling) a straightedge having a telescopic sight or other means of sighting parallel to the straightedge. the entire upper part of a theodolite or transit, including the telescope, its supports, the level vials, the circle-reading device, and the spindle. Historical Examples The alidade is a triangular ruler with one or more working scales on […]
a resident born in or belonging to another country who has not acquired citizenship by naturalization (distinguished from ). a foreigner. a person who has been estranged or excluded. a creature from outer space; . residing under a government or in a country other than that of one’s birth without having or obtaining the status […]
- Alien abduction
noun a purported experience in which a person claims to have been taken away by extraterrestrial beings; also called UFO abduction Examples There are many publications on ways to prevent becoming a victim of alien abduction. Contemporary Examples See the wildest explanations—from an alien abduction to a fake identity—for her disappearance. 8 Crazy Conspiracy Theories […]
- Alien and sedition acts
alien and sedition acts A series of laws, passed during the presidency of John Adams at the end of the eighteenth century, that sought to restrict the public activities of political radicals who sympathized with the French Revolution and criticized Adams’s Federalist policies. In response to the Alien and Sedition Acts, James Madison and Thomas […]