We don't have synonyms for love number yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are wave number, have number and lot number.
(N) :
The Love numbers (h, k, and l) are dimensionless parameters that measure the rigidity of a planetary body or other gravitating object, and the susceptibility of its shape to change in response to an external tidal potential.
(N) :
The Love numbers (h, k, and l) are dimensionless parameters that measure the rigidity of a planetary body or other gravitating object, and the susceptibility of its shape to change in response to an external tidal potential.