plus sign
(arithmetic) The symbol + used to denote the operation of addition, to indicate that a number is positive, and so on.
A range of radio frequencies allocated for use by private citizens through the medium of citizens' band radio.
Any bryozoan of the family Adeonidae
(biology) Relating to organisms' behaviour in which food is acquired at random intervals during the day or night.
電卓のプラス記号は素早く足し算を行うのを簡単にしてくれる。
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