Between the channels of these dilatations islands are being formed.
The other dilatations should be narrowed in from both sides by jetties.
The dilatations become enlarged by retention of food, and are liable to undergo inflammation, ulceration, and perforation.
The action of the heart consists in alternate contractions and dilatations.
In each of these dilatations there are usually two or three channels with newly formed islands between them.
I see no reason why the stipulæ of Rosæ are not to be considered as belonging to, or dilatations of the petiole.
These dilatations and flexions, just because they are very small, will be for our mind relatively easy to study.
The mirrors are nothing more than dilatations of the subdorsal line, which is not therefore interrupted by them.
In twenty seconds I counted seventy expansions and dilatations of this apparatus.
The affected vessels slowly increase in size, and become tortuous, with narrowings and dilatations here and there.