Adjective

(-)

parallel, along the same vein, side by side.

Corresponding; accompanying, concomitant.

* Wordsworth

Yet the attempt may give / Collateral interest to this homely tale.

Being aside from the main subject; tangential, subordinate, ancillary.

Although not a direct cause, the border skirmish was certainly a collateral incitement for the war.

* Macaulay

That he [Atterbury] was altogether in the wrong on the main question, and on all the collateral questions springing out of it, is true.

(family ) of an indirect ancestral relationship, as opposed to lineal descendency.

''Uncles, aunts, cousins, nephews and nieces are collateral relatives.

* 1885 , , The Book of the Thousand Nights and a Night , volume 5,

The pure blood all descends from five collateral lines called Al-Khamsah (the Cinque).

relating to a collateral in the sense of an obligation or security

expensive to the extent of being paid through a loan

Coming or directed along the side.

collateral pressure

* Shakespeare

collateral light

Acting in an indirect way.

* Shakespeare

If by direct or by collateral hand / They find us touched, we will our kingdom give / To you in satisfaction.

Adjective

(en adjective)

Similar or identical in value, meaning or effect; virtually equal.

* South

For now to serve and to minister, servile and ministerial, are terms equivalent .

* {{quote-magazine, date=2012-03

, author=(Henry Petroski) , title=Opening Doors , volume=100, issue=2, page=112-3 , magazine= citation , passage=A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place. Applying a force tangential to the knob is essentially equivalent to applying one perpendicular to a radial line defining the lever.}}

(mathematics) Of two sets, having a one-to-one correspondence; equinumerous.

* Comprehensive MCQ's in Mathematics , page 3:

Finite sets A and B are equivalent sets only when n''(A) = ''n''(B) ''i.e. , the number of elements in A and B are equal.

* 1950 , E. Kamke, Theory of Sets , page 16:

All enumerable sets are equivalent to each other, but not to any finite set.

* 2000 , N. L. Carothers, Real Analysis , page 18:

Equivalent' sets should, by rights, have the same "number" of elements. For this reason we sometimes say that '''equivalent sets have the same ''cardinality .

* 2006 , Joseph Breuer, Introduction to the Theory of Sets , page 41:

The equivalence theorem: If both M is equivalent''' to a subset N₁ of N and N is '''equivalent''' to a subset M₁ of M, then the sets M and N are '''equivalent to each other.

(mathematics) Relating to the corresponding elements of an equivalence relation.

(chemistry) Having the equal ability to combine.

(cartography) Of a map, equal-area.

(geometry) Equal in measure but not admitting of superposition; applied to magnitudes.

A square may be equivalent to a triangle.