addition sign

addition sign

[ə′di·shən ‚sīn]
(mathematics)
The symbol +, used to indicate addition. Also known as plus sign.
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References in periodicals archive ?
The symbol for iffinity is a capital O with an addition sign in it: [symmetry].
First, we will test whether activity in fronto-parietal brain regions can be automatically triggered by the simple visual presentation of an addition sign, and whether this automatic activation may facilitate arithmetic performance in adults proficient in arithmetic.
He added: "The proposed scheme consists of red surfacing and carriageway markings, in addition signs are to be installed to highlight the entrance to the housing development.