Dictionary » D » Dilates



1. To grow wide; to expand; to swell or extend in all directions. His heart dilates and glories in his strength. (Addison)

2. To speak largely and copiously; to dwell in narration; to enlarge; with on or upon. But still on their ancient joys dilate. (Crabbe)

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Re: veins (alevel help!)

... So when the words either constriction or dilation are added after the prefix, it specifically indicates that it's the vein that constricts or dilates.

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by mcar
Mon Mar 30, 2009 6:54 am
Forum: Physiology
Topic: veins (alevel help!)
Replies: 7
Views: 13770


... drying sensation. Alcohol is commonly wiped onto the skin to reduce a fever (my mother used to do this to me when I was a child). Rubbing alcohol dilates blood vessels when it is massaged vigorously into the skin. This is why sports massage therapists rub down their clients after hard workouts ...

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by ladykat324
Wed Nov 21, 2007 6:13 am
Forum: General Discussion
Topic: i'm so curious
Replies: 12
Views: 5734


... the sphincter contracts, causing the pupil to constrict. The dilator muscle runs radially through the iris, like spokes on a wheel. This muscle dilates the eye in dim lighting. The iris is flat and divides the front of the eye (anterior chamber) from the back of the eye (posterior chamber). ...

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by Dr.Stein
Mon Dec 12, 2005 8:29 am
Forum: Human Biology
Topic: eye
Replies: 11
Views: 7220

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