dilate russian

• распространя́ться

  spread, enlarge, expatiate, dilate

  to apply, pertain

• расширя́ться

  widen, broaden, gain in breadth, dilate, increase, become wider, expand

Examples

• Зрачки́ Тома расши́рились.Tom's pupils became dilated.
• Зрачки́ Тома расширены.Tom's pupils are dilated.