dilator

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a muscle or nerve that dilates or widens a body part
• Derivationally related forms:
dilate
• Hypernyms:
body part
2. a drug that causes dilation
• Derivationally related forms:
dilate
• Hypernyms:
drug
• Hyponyms:
vasodilator, vasodilative
3. a surgical instrument that is used to dilate or distend an opening or an organ
• Syn:
dilater
• Derivationally related forms:
dilate
• Hypernyms:
surgical instrument