- capable of being expressed exactly by a ratio of two integers.
- (of a function) capable of being expressed exactly by a ratio of two polynomials.
Origin of rational
Examples from the Web for rationally
When I fielded telephone calls, my attempts to rationally discuss the subject were complete failures.
That is a message that might rationally resonate with independents, because it is rooted in fact.Policy Black Hole: Mitt Romney Keeps His Ideas To Himself|John Avlon|June 22, 2012|DAILY BEAST
The rational mind of course is correct, rationally—but we are not rational animals.Circumcision’s Deadly Fault Line: Rationality vs. the Metzitzah B’Peh|Kent Sepkowitz|June 10, 2012|DAILY BEAST
In Part 1, we learn that political opinions don't come from rationally developing arguments.
Annie Martin is still too peeved to rationally discuss comic Steve Harvey.
It will not be easy to imagine any third mode materially different, which could rationally be proposed.The Federalist Papers|Alexander Hamilton, John Jay, and James Madison
Few copies of the New Testament have been sold; yet what else could be rationally expected in these latter times?Letters of George Borrow|George Borrow
Rationally conceived they are not only consonant with Determinism, but each of them implies it.Determinism or Free-Will?|Chapman Cohen
We cannot rationally suppose that Adam was a stranger to his duty, either in its nature, manner, or extent.The Mosaic History of the Creation of the World|Thomas Wood
Since he himself is the way, can we rationally conclude that he would do anything for a guide to us that is unimportant?
British Dictionary definitions for rationally
Word Origin for rational
Word Origin and History for rationally
late 14c., "pertaining to reason;" mid-15c., "endowed with reason," from Old French racionel and directly from Latin rationalis "of or belonging to reason, reasonable," from ratio (genitive rationis) "reckoning, calculation, reason" (see ratio).