catflap.org Online Dictionary Query

  halmyro(ly)sis /halmˈɪɹəʊ lˈaɪ sˈɪs/
  submarine Verwitterung, Halmyrolyse 
     Synonym: submarine weathering
  
   see: weathering, decay, surface disintegration, cavernous weathering, carbonation, chemical weathering, decomposition, efflorescence, immature weathering, humic decomposition, concentric weathering, speroidal weathering, mechanical weathering, physical weathering, disintegration, disaggregation, onion weathering, degradation