"characteristic" in the noun sense
1. feature, characteristic
a prominent attribute or aspect of something
"the map showed roads and other features"
"generosity is one of his best characteristics"
a distinguishing quality
the integer part (positive or negative) of the representation of a logarithm in the expression log 643 = 2.808 the characteristic is 2
4. characteristic, device characteristic
any measurable property of a device measured under closely specified conditions
"characteristic" in the adjective sense
typical or distinctive
"heard my friend's characteristic laugh"
"red and gold are the characteristic colors of autumn"
"stripes characteristic of the zebra"
Source: WordNet® (An amazing lexical database of English)
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