dilatation
UK[ˌdaɪleɪˈteɪʃən]US[ˌdɪləˈteɪʃən]
n
the action of becoming or making something wider or larger, especially a hollow part of the body.
n
a dilated part of a hollow organ or vessel.
Morpheme Breakdown
di
lat
ation
di
apart
lat
wide
ation
noun suffix
Etymology
the word 'dilatation' originates from the latin verb 'dilatare', meaning 'to spread out' or 'to widen'. this verb itself is a compound of the prefix 'dis-' (apart) and the root 'latus' (wide, broad). the core concept of 'latus' is believed to derive from the proto-indo-european root stel- (to put, stand), which also gave rise to words like 'latitude'. the suffix '-ation' was added to form a noun describing the process or result of widening. in modern english, it retains this literal sense, primarily used in technical and medical contexts to describe the expansion of a cavity, tube, or vessel.
Analysis
Structure: di (apart) + lat (wide) + ation (noun suffix)
di- (prefix, from latin, meaning 'apart' or 'thoroughly'); -lat- (root, from latin 'latus', meaning 'wide'); -ation (suffix, from latin '-ationem', forming nouns of action or state).
Examples
the doctor observed the dilatation of the patient's pupils.
thermal dilatation of the metal caused the bridge to expand.
the procedure involves the gentle dilatation of the blood vessel.