catflap.org Online Dictionary Query

  speroidal weathering /spˈɛɹɔɪdəl wˈɛðəɹɪŋ/
  kug(e)lige Verwitterung
     Synonym: concentric weathering
  
   see: weathering, decay, surface disintegration, cavernous weathering, carbonation, chemical weathering, decomposition, efflorescence, immature weathering, humic decomposition, mechanical weathering, physical weathering, disintegration, disaggregation, onion weathering, degradation, submarine weathering, halmyro(ly)sis