Meaning

noun the property of a microphone or antenna of being more sensitive in one direction than in another

noun the property of being directional or maintaining a direction

originEtymology tree English direction Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English directional Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English directionality From…

Etymology from Wiktionary, CC BY-SA 3.0