ray

raggio

Fascio sottile di luce o energia che si propaga da una sorgente.

In inglese semplice: A narrow line of light or energy moving out from a source.

• A ray of light reached the floor.
• The sun’s rays warmed my face.
• These rays can pass through some materials.

Come si usa: a ray of light (A ray of light came through the curtains.)

Sinonimi: beam

Espressioni comuni: ray of light, sun ray

razza

Pesce marino largo e piatto, con grandi pinne laterali e solitamente una coda lunga e sottile.

In inglese semplice: A wide, flat sea fish with large side fins and usually a long, thin tail.

• A ray swam past us.
• We saw rays at the aquarium.
• The ray rested on the sand.

Espressioni comuni: manta ray, ray swimming

semiretta

Linea retta che parte da un punto e continua all’infinito in una sola direzione.

In inglese semplice: A straight line that begins at one point and continues forever in one direction.

• Draw a ray from this point.
• The two rays form an angle.
• Each ray has just one endpoint.

Espressioni comuni: draw a ray, ray endpoint