The phrase "absence of equivalent" is correct and usable in written English.
It can be used in contexts where you want to indicate that there is no comparable or matching counterpart for something.
Example: "The absence of equivalent resources in the market has led to increased prices for the available options."
Alternatives: "lack of equivalent" or "nonexistence of equivalent".
The problem for Arsenal's crop of young players over the past few trophyless seasons has been the absence of equivalent know-how.
Mitochondrial Thr-389 p70S6K and Ser-112 BAD phosphorylation were normalized in the absence of equivalent changes in phosphorylated JNK (Fig. 6D).
With the absence of equivalent reference to young women's desire, such a discourse constitutes young men as predatory sexual subjects.
There were a few errors relating to invalid taxids and our use of BIND CV identifiers for experimental method detection elements, which we were unable to translate due to the absence of equivalent CV terms in PSI-MI.
The robustness of these results was endorsed by the absence of equivalent signals in our parallel analyses of the yeast clade which, since it lacks 5mC, served as our biological control.
Another deviation from the prototypical R-type pyocin gene organization is the absence of equivalents of the P. aeruginosa regulatory genes prtN and ptrB, located downstream and upstream of prtR, respectively (fig. 2).
In contrast to conventional MN tests, the neutralization of infection in the H5pp test was detected by measuring the reduction of end-point chemoluminescent signal compared to controls done in absence of sera (equivalent to 0% neutralization) and in absence of H5pp (equivalent to 100% neutralization), respectively.
As Mr. Gates discovered in his meeting last week, the absence of the equivalent of a National Security Council in China meant that the military could operate by its own rules.
While the state can summon a rapid and impressive display of gendarmes, crowd control and riot forces as well as national police for demonstrations and protests, city-dwellers have long complained of an absence of the equivalent of the British bobby on the beat on Paris streets.
Yesterday we reported that Instagram lacked data portability, knocking the app for the absence of an equivalent to Facebook's Download Your Information too.
The absence of an equivalent enzyme in humans makes IN an interesting target for anti-HIV drug design.
