| 释义 |
dil·a·ta·tion
\ˌdiləˈtāshən, ˌdīl-\ noun
(-s)
Etymology: Middle English dilatacioun, from Middle French dilatation enlargement, from Late Latin dilatation-, dilatatio, from Latin dilatatus (past participle of dilatare to dilate) + -ion-, -io, -ion
1. : amplification in writing or speech especially by the addition of discussion, illustration, or detail
2.
a. : the condition of being stretched beyond normal dimensions especially as a result of overwork or disease
< dilatation of the heart >
or of abnormal relaxation
< dilatation of the stomach >
b. : dilation 2
3. : the act of expanding or the state of being expanded : enlarging or spreading
4. : a dilated part or formation
5.
a. : a change in volume of a rock body under confining pressure
< an increase in volume is positive dilatation and a decrease is negative dilatation >
b. : the strain produced by such pressure change
• dil·a·ta·tion·al \| ̷ ̷ ̷ ̷| ̷ ̷shənəl, -shnəl\ adjective |