Tra từ focal point - Từ điển WordNet v3.1

noun

1. a point of convergence of light (or other radiation) or a point from which it diverges (Freq. 2)
• Syn:
focus
• Derivationally related forms:
focal (for: focus), focus (for: focus)
• Hypernyms:
point
2. a central point or locus of an infection in an organism
- the focus of infection
• Syn:
focus, nidus
• Hypernyms:
point
• Part Holonyms:
focal infection
3. the concentration of attention or energy on something
- the focus of activity shifted to molecular biology
- he had no direction in his life
• Syn:
focus, focusing, focussing, direction, centering
• Derivationally related forms:
center (for: centering), focus (for: focussing), focus (for: focusing), focus (for: focus)
• Hypernyms:
concentration, engrossment, absorption, immersion
• Hyponyms:
particularism