dilation

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a lengthy discussion (spoken or written) on a particular topic
• Derivationally related forms:
dilate
• Hypernyms:
discussion, treatment, discourse
2. the act of expanding an aperture
- the dilation of the pupil of the eye
• Syn:
dilatation
• Derivationally related forms:
dilate (for: dilatation), dilate
• Hypernyms:
expansion, enlargement
• Hyponyms:
vasodilation, mydriasis