A polymorphic species.    From Wordnet, Princeton University. 

Man is both polymorphic and polytypic.    From Wordnet, Princeton University. 

And this is known as a polymorphic virus or worm, in that each time it's transmitted, it comes in a different guise.    From Wordnik.com.  [CNN Transcript - Special Event: Attorney General Janet Reno Holds News Briefing on 'Newlove.vbs' Computer Virus - May 19, 2000] Reference

Elisa is doing a "polymorphic" dress with a caplet.    From Wordnik.com.  [Jane McGivney: Make It Work: The Knitwear of Despair] Reference

It is kind of polymorphic behaviour because of multiple classes and events getting wired automatically.    From Wordnik.com.  [ASP.NET Forums] Reference

As Williams notes, Koobface is highly polymorphic, meaning that it's constantly changing to look like something else.    From Wordnik.com.  [InformationWeek - All Stories And Blogs] Reference

I had chosen "polymorphic" because there are "many forms" in it ... sorry for the previous misinformation, that was my mental lapse.    From Wordnik.com.  [COMIXTALK] Reference

Because it could make this vision of a new computing platform real and because it allowed me to use the word "polymorphic" in a sentence.    From Wordnik.com.  [E-Commerce Times] Reference

It's polymorphic, so it probably involves a lot of genes.    From Wordnik.com.  [CNN Transcript Feb 16, 2000] Reference

A: ‰ U will be the type of the polymorphic identity function.    From Wordnik.com.  [Type Theory] Reference

The possibility of polymorphic equilibrium is quite significant.    From Wordnik.com.  [Population Genetics] Reference

Calling delete on a polymorphic class without a virtual destructor.    From Wordnik.com.  [Snell-Pym » 2009 » January] Reference

Aided by a polymorphic guardian angel (Bruce Willis), he goes on a search.    From Wordnik.com.  [See You In Court, Mom And Dad] Reference

Perhaps the next version, DSME will have both polymorphic and hideen features.    From Wordnik.com.  [Justice to Charlotte Brontë] Reference

We're automatically polymorphic in a, but not in b, where we have to do it manually.    From Wordnik.com.  [Snell-Pym » Generic Functions] Reference

He followed a crowd inside and took his place in the polymorphic dance down the stairs.    From Wordnik.com.  [Why Do You Hoard? Why Do You Squander?] Reference

A tour de force in the polymorphic use of that age old boogieman, the infamous “they”.    From Wordnik.com.  [Girsch's Law of Economics « Lean Left] Reference

Also, some of my boxes were polymorphic, but I don't think I know how to explain that to him.    From Wordnik.com.  [Archive 2009-05-01] Reference

The conclusion that genetic variation was ubiquitous, with most genes being polymorphic, was inescapable.    From Wordnik.com.  [Evolutionary Genetics] Reference

A previously unreported highly-polymorphic region in exon2 was identified in both control and UDT patients.    From Wordnik.com.  [Urology Division Research] Reference

Do you even know about the fish that change gender, or the animals that are polymorphic and have both genders?.    From Wordnik.com.  [Think Progress » Evacuation Priorities] Reference

These butterflies display Müllerian mimicry and there are many polymorphic races differing in wing color patterns.    From Wordnik.com.  [Archive 2006-05-01] Reference

"Technically the Hare virus is a multipartite, stealth, slow polymorphic virus which makes it particularly destructitve.".    From Wordnik.com.  [ANC Daily News Briefing] Reference

Behavior, because it's so complicated to orchestrate, is polymorphic — it requires the action of many genes in concert.    From Wordnik.com.  [How We Become What We Are] Reference

I had already engaged in many trips during our research on the distribution of polymorphic traits and in the HBV studies.    From Wordnik.com.  [Baruch S. Blumberg - Autobiography] Reference

Identifying these polymorphic variations will help to more effectively treat people who carry a risk for certain diseases.    From Wordnik.com.  [The Most Complete Food Counter, 2nd Edition] Reference

The shell colors and band numbers of Cepaea nemoralis are notoriously polymorphic (Evolution MegaLab has a brief introduction).    From Wordnik.com.  [Cepaea nemoralis] Reference

Usually normal; in complex migraine can demonstrate mild slowing focal or generalized, or unilateral high-voltage polymorphic slowing.    From Wordnik.com.  [The Neuropsychiatric Guide to Modern Everyday Psychiatry] Reference

Half of the genes that code for enzymes in insects and plants may be polymorphic, whereas polymorphisms are less common in vertebrates.    From Wordnik.com.  [Genetic variation] Reference

The canonical example back in 1989 was shapes, so that you could create a polymorphic draw() method (this example still pops up a lot).    From Wordnik.com.  [Archive 2005-02-01] Reference

A fascinating problem: The proportions in even an otherwise stable polymorphic population might be responsive to changes in institutions.    From Wordnik.com.  [Liberals need to be gettin' busy] Reference

When the degree of correlation is set to .2, the polymorphic basin reduces to the point at which the population starts in the polymorphism.    From Wordnik.com.  [Game Theory] Reference

Its a polymorphic virus that targets executable files.    From Wordnik.com.  [Wilders Security Forums]

Those differences are what cause polymorphic behavior.    From Wordnik.com.  [The Gadgeteer] Reference

SM - I think the polymorphic pigeons are going to suggest that Peter Parker watch a little TV.    From Wordnik.com.  [Baltiblogs]

In all four cases we monitored the gene expression from both the polymorphic and the nonpolymorphic locus.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference