i.q.,
intelligence quotient,
iq a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)
load factor (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)
loss ratio the ratio of the annual claims paid by an insurance company to the premiums received
mach number the ratio of the speed of a moving body to the speed of sound
magnification the act of expanding something in apparent size
mechanical advantage the ratio of the force exerted by a machine to the force applied to it
betting odds,
odds the likelihood of a thing occurring rather than not occurring
order of magnitude,
magnitude a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10
relative humidity the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature; expressed as a percentage
respiratory quotient the ratio of the volume of carbon dioxide expired to the volume of oxygen consumed by an organism or cell in a given period of time
factor of safety,
safety factor the ratio of the breaking stress of a structure to the estimated maximum stress in ordinary use
stoichiometry (chemistry) the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)
time constant the ratio of the inductance of a circuit in henries to its resistance in ohms
loading the labor of putting a load of something on or in a vehicle or ship or container etc.; "the loading took 2 hours"
ratio -
the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree; "an inordinate proportion of the book is given over to quotations"; "a dry martini has a large proportion of gin"
A ratio is a relationship between two numbers of the same kind (i.e. , objects, persons, students, spoonfuls, units of whatever identical dimension), usually expressed as "a to b" or a:b, sometimes expressed arithmetically as a dimensionless quotient of the two, which explicitly indicates how many times the first number contains the second.