The Collaborative International Dictionary
                    Ecthlipsis
                    
                        
                
                                                                    Ecthlipsis \Ec*thlip"sis\, n. [L., fr. Gr. ?, fr. ? to squeeze out.]
- The dropping out or suppression from a word of a consonant, with or without a vowel. 
- (Lat. Pros.) The elision of a final m, with the preceding vowel, before a word beginning with a vowel. [1913 Webster] || 
Wiktionary
                    ecthlipsis
                    
                        
                
                                                                    n. 1 (context linguistics Latin prosody English) The dropping out or suppression from a word of a consonant, with or without a vowel. 2 (context linguistics Latin prosody English) The elision of a final m, with the preceding vowel, before a word beginning with a vowel.