mekso -mek-me'o- gismu

x1 [quantifier/expression] is a mathematical expression interpreted under rules/convention x2.

See also cmaci, dilcu, fancu, frinu, jalge, namcu, parbi, pilji.

In definition:

tu'o
null operand (used in unary mekso operations).

In notes:

cmaci
x1 is a mathematics of type/describing x2.
dilcu
x1 is a quotient of 'x2/x3' [dividend x2 divided by divisor x3], leaving remainder x4.
fancu
x1 is a function/single-valued mapping from domain x2 to range x3 defined by expression/rule x4.
frinu
x1 is a fraction, with numerator x2, denominator x3 (x2/x3).
jalge
x1 (action/event/state) is a result/outcome/conclusion of antecedent x2 (event/state/process).
namcu
x1 (li) is a number/quantifier/digit/value/figure (noun); refers to the value and not the symbol.
parbi
x1 (me'o, fraction) is a ratio/rate of x2 (quantity) with respect to x3 (quantity), [x2:x3].
pilji
x1 is the product/total/result of factors/multiplicands (x2 and x3) x2 multiplied by x3.