Semiautomatic or semi-automatic
An automatic machine or device is able to operate independently of human control, and a "semi-automatic" version would or might require separate human control.
Pistols, rifles, and other weapons are termed "semi-automatic" if they fire only one round for each operation of the trigger. An automatic weapon, or one in automatic mode, will fire continuously as long as the trigger remains depressed, until the magazine is depleted.
Modern semiautomatic weapons became available around the turn of the 19th century. Early in the 20th Century, these types of weapons become widely available.Although revolvers have been around since the early 1800's and CAN fit the definition of semiautomatic: "Firing ONE round for every pull of the trigger" they generally are excluded as it is human muscles that rotate the cylinder in preparation for the next shot. This is not different that working a bolt-action, or pumping a shotgun. If there was a revolver-type handgun that used the RECOIL of the previous shot to rotate the cylinder, that COULD be considered semiautomatic.
Barrett makes a range of .50 rifles, some of which are self loading (semiautomatic), and some of which are bolt action. The most famous of these rifles is the M92/M107, which is semiautomatic.
No
Semiautomatic means that you don't need to operate the clutch but you do need to select the gear range manually.
semiaquatic, semiabstract, semicircle, and more Semi is not a root word it is a prefix. semiautomatic; semidetached; semimonthly; semisophisticated.
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The actions operation.
The definition of the root word alti is high
a definition of a compound word is jack-ass.