ectasis

About 0.00 uses per million words.

Meaning

1. noun The dilation or distention of a hollow or tubular part of the body, typically due to disease or injury.
2. noun The lengthening of a syllable from short to long.

Similar words

bronchiolectasis bronchiectasis ectasia lymphadenectasis bronchodilation atelectasis aortectasis hemangiectasis sialectasis cholangiectasis

Often followed by

of expansion is dilation