What ⪪ means
Read the left side as less than the right.
Use ⪪ when a formula, reference or notation system calls for this particular relation; the everyday less-than sign is <. MathML, a markup format for mathematical notation on the web, treats ⪪ as an operator between two expressions.
Unicode's mathematical collection was expanded to support web markup, formula editors and software that works with algebraic expressions. It drew on ISO's named mathematical-symbol sets and STIX, a collaborative project drawing symbols from scientific and technical publishers. An XML math-entity list also gives ⪪ the name ⪪.
Don't confuse it with
1Questions people ask
1Can ⪪ look different in another font?
Yes. Fonts can change its proportions or details while drawing the same character; a visual difference alone does not change the relation.
How to type ⪪
⪪\2AAACodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
