Pasture vs Undefined - What's the difference?

As a noun pasture

is land on which cattle can be kept for feeding.

is to move animals into a to graze.

lacking a definition or value.

(en noun)

Land on which cattle can be kept for feeding.

Ground covered with grass or herbage, used or suitable for the grazing of livestock.

* Bible, Psalms xxiii. 2

He maketh me to lie down in green pastures .

* Shakespeare

So graze as you find pasture .

(obsolete) Food, nourishment.

* 1590 , Edmund Spenser, The Faerie Queene , III.x:

Ne euer is he wont on ought to feed, / But toades and frogs, his pasture poysonous [...].

* pasture rose * pasture thistle

To move animals into a to graze.

To graze.

To feed, especially on growing grass; to supply grass as food for.

The farmer pastures''' fifty oxen; the land will '''pasture forty cows.

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(wikipedia undefined) (-)

Lacking a definition or value.

(mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.

The result of division by zero is undefined .

* defined