GNU Collaborative International Dictionary of English

Found one definition

      
opportunistic adj.
1.  taking immediate advantage, often unethically, of any circumstance of possible benefit; practising opportunism. [wns=1]

Syn. -- opportunist, timeserving.

[WordNet 1.5]


2. (Med.) Causing disease only when the immune system of the host has been weakened, or other damage to the host provides special opportunity for invasion; -- of microorganisms or infectious diseases; as, “opportunistic pathogens may infect a burn site; AIDS predisposes a patient to opportunistic infection”.

[PJC]

Last match results

'S, -S, A, A-, Aa, Aas, Ab, Abs, Ac, Ae, Ah, Ai, Al, Als, Am, An, Ar, As, Asa, Asc, Ash, Ask, Asl, Asp, Ass, At, Av, Ax, Ay, Es, Gas, Has, Is, Las, Ms, Nas, Oas, Os, Pas, Ras, S, Tas, Us, Vas, Was