In a paper I am writing, I have a sentence like this:
Another category of common sounds found across many languages are the palato-alveolar consonants (~sibilants). These include…
The meaning I want to convey is that palato-alveolar consonants are very related to sibilants, so I add the word “sibilants” in parentheses for laymen who may not be familiar with the term “palato-alveolar consonants”. However, I do not want to just say
palato-alveolar consonants (sibilants)
because they are not totally identical.
Is the usage of the tilde in this case acceptable in my paper? If not, are there any other ways I can convey this information?