Verb

(en verb)

To make thicker (in the sense of wider).

To make thicker (in the sense of more viscous).

To become thicker (in the sense of wider).

* {{quote-magazine, year=2013, month=July-August, author= Stephen P. Lownie], [http://www.americanscientist.org/authors/detail/david-m-pelz David M. Pelz

, magazine=(American Scientist), title= Stents to Prevent Stroke , passage=As we age, the major arteries of our bodies frequently become thickened with plaque, a fatty material with an oatmeal-like consistency that builds up along the inner lining of blood vessels. The reason plaque forms isn’t entirely known, but it seems to be related to high levels of cholesterol inducing an inflammatory response, which can also attract and trap more cellular debris over time.}}

To become thicker (in the sense of more viscous).

To strengthen; to confirm.

* (William Shakespeare)

And this may help to thicken other proofs.

To make more frequent.

Verb

(curdl)

(ambitransitive) To form curds so that it no longer flows smoothly; to cause to form such curds. (usually said of milk)

Too much lemon will curdle the milk in your tea.

(ambitransitive) To clot or coagulate; to cause to congeal, such as through cold. (metaphorically of blood)

* 1814, Sir Walter Scott, Waverley

"Vich Ian Vohr," it said, in a voice that made my very blood curdle , "beware of to-morrow!"

To cause a liquid to spoil and form clumps so that it no longer flows smoothly

* 1836, Charles Dickens, The Pickwick Papers

It is enough,' said the agitated Mr. Slurk, pacing to and fro, 'to curdle the ink in one's pen, and induce one to abandon their cause for ever.'