noun Download 🔗Share Any equipment used for visual signalling by means of flags, lights, or mechanically moving arms, which are used to represent letters of the alphabet, or words. Examples : "The construction crew used a semaphore with brightly colored flags to guide the crane operator. " communication technology nautical signal machine military device Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A visual system for transmitting information using the above equipment; especially, by means of two flags held one in each hand, using an alphabetic and numeric code based on the position of the signaller's arms; flag semaphore. Examples : "The sailors used semaphore to send a message from ship to shore because their radio was broken. " communication technology signal nautical military system sign writing Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A bit, token, fragment of code, or some other mechanism which is used to restrict access to a shared function or device to a single process at a time, or to synchronize and coordinate events in different processes. Examples : "The thread increments the semaphore to prevent other threads from entering the critical section at the same time." computing technology process signal communication device system function Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To signal using, or as if using, a semaphore, with the implication that it is done nonverbally. Examples : "From across the noisy playground, the teacher semaphoreed to the children to line up. " communication signal nautical military Chat with AIVocabulary GamePractice Reading
