rod

A2 · Elementary Countable noun Sports

n. a long, flexible pole used for catching fish.

n. a long, slender, usually tapering pole used for angling.

日本語:竿※

Español:caña

“He spent the afternoon by the lake with his fishing rod and a bucket.”

“Modern fishing rods are typically constructed from carbon fibre or fiberglass to provide a balance of flexibility and strength during a catch.”

C1 · Advanced Countable noun Technology Technical

n. a metal bar that connects moving parts in a machine.

n. a straight bar that unites moving parts of a machine, often for transferring power or holding components together.

日本語:ロッド※

“The engine failed because a connecting rod broke while the car was moving.”

“The piston is attached to the crankshaft via a connecting rod, which converts linear motion into rotational energy.”

C1 · Advanced Countable noun Science Technical

n. a special cell in the eye that helps you see in low light.

n. a light-sensitive cell in the retina of the eye that provides peripheral vision and the ability to see in dim light.

“The rods in your eyes are more active when you walk in the dark.”

“Unlike cones, which detect colour, rods are highly sensitive to light intensity and are essential for scotopic vision.”

C1 · Advanced Countable noun Literary · Archaic

n. a stick used in the past for hitting people as a punishment.

n. a stick or bundle of twigs used to administer corporal punishment.

Español:vara

“In the old days, teachers sometimes used a rod to punish students.”

“The biblical proverb suggests that he who spares the rod hates his son, reflecting historical attitudes toward discipline.”

C2 · Proficiency Countable noun Slang

n. a slang word for a handgun or pistol.

n. a slang term for a firearm, specifically a handgun.

“The detective noticed the criminal was carrying a rod in his waistband.”

“In classic noir fiction, characters often refer to their pistols as rods or heaters to maintain a hard-boiled tone.”

C2 · Proficiency Technology Technical

v. to put metal bars into concrete to make it stronger.

v. to reinforce concrete or other building materials with metal rods.

“The workers had to rod the foundation before pouring the cement.”

“Engineers specified that the retaining wall must be rodded thoroughly to withstand the lateral pressure of the soil.”