in·di·vis·i·ble /ˌɪndəˈvɪzəbəl/
 (a.)不能分割的,除不盡的


 In·di·vis·i·ble a.
 1. Not divisible; incapable of being divided, separated, or broken; not separable into parts. “One indivisible point of time.”
 2. Math. Not capable of exact division, as one quantity by another; incommensurable.


 In·di·vis·i·ble, n.
 1. That which is indivisible.
    By atom, nobody will imagine we intend to express a perfect indivisible, but only the least sort of natural bodies.   --Digby.
 2. Geom. An infinitely small quantity which is assumed to admit of no further division.
 Method of indivisibles, a kind of calculus, formerly in use, in which lines were considered as made up of an infinite number of points; surfaces, as made up of an infinite number of lines; and volumes, as made up of an infinite number of surfaces.

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 indivisible
      adj : impossible of undergoing division; "an indivisible union of
            states"; "one nation indivisible" [ant: divisible]