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What is "commensurable"

The Collaborative International Dictionary
Commensurable

Commensurable \Com*men"su*ra*ble\, a. [L. commensurabilis; pref. com- + mensurable. See Commensurate, and cf. Commeasurable.] Having a common measure; capable of being exactly measured by the same number, quantity, or measure. -- Com*men"su*ra*ble*ness, n.

Commensurable numbers or Commensurable quantities (Math.), those that can be exactly expressed by some common unit; thus a foot and yard are commensurable, since both can be expressed in terms of an inch, one being 12 inches, the other 36 inches.

Numbers commensurable in power, or Quantities commensurable in power, those whose squares are commensurable.

Related phrases:
Douglas Harper's Etymology Dictionary
commensurable

1550s, from Late Latin commensurabilis "having a common measure," from com- "together with" (see com-) + Latin mensurabilis "that can be measured," from mensurare "to measure," from mensura "measure" (see measure (v.)).

Wiktionary
commensurable

a. 1 Able to be measured using a common standard 2 related in size or scale; commensurate or proportionate 3 (context mathematics English) (''of two numbers'') divisible by the same number

WordNet
commensurable

adj. able to be measured by a common standard; "hours and minutes are commensurable"

Usage examples of "commensurable".

For life is progress, whilst the geometrical method is commensurable only with things.

A Xaxan's emotions were not necessarily commensurable with his own, of course.

Now that which is of divine birth has a period which is contained in a perfect number, but the period of human birth is comprehended in a number in which first increments by involution and evolution (or squared and cubed) obtaining three intervals and four terms of like and unlike, waxing and waning numbers, make all the terms commensurable and agreeable to one another.