aleta meaning in English — blade, fin, flipper

English meaning

blade noun The flat, sharp-edged cutting part of a knife, sword, or similar tool.
fin noun One of the flat, wing-like parts on a fish or marine animal used for swimming and steering.
flipper noun A wide, flat limb used for swimming, found on animals such as whales, seals, and turtles.
vane noun A device mounted on a roof or pole that turns to show which way the wind is blowing.

aleta is used for these senses in English:

blade The flat functional end or piece of a propeller, oar, hockey stick, chisel, screwdriver, skate, etc.
blade (mathematics) An exterior product of vectors. (The product may have more than two factors. Also, a scalar counts as a 0-blade, a vector as a 1-blade; an exterior product of k vectors may be called a k-blade.)
fin A thin, rigid component of an aircraft, extending from the fuselage and used to stabilise and steer the aircraft.
fin A hairstyle, resembling the fin of a fish, in which the hair is combed and set into a vertical ridge along the top of the head from about the crown to the forehead.
flipper A flat lever in a pinball machine, triggered by the player to strike the ball and keep it in play.
futtock (nautical) Any of the curved rib-like timbers that form the frame of a wooden ship.
vane Any of several usually relatively thin, rigid, flat, or sometimes curved surfaces radially mounted along an axis, as a blade in a turbine or a sail on a windmill, that is turned by or used to turn a fluid.

noun The flat, sharp-edged cutting part of a knife, sword, or similar tool.
noun A flat, thin part shaped like a cutting blade, such as of a fan, propeller, oar, or grass.
verb To skate using inline skates ("rollerblades").

noun One of the flat, wing-like parts on a fish or marine animal used for swimming and steering.
noun A rigid, blade-like part sticking out from an aircraft, rocket, or vehicle to help it stay stable or steer.
noun A flipper worn on the foot for swimming or diving.

lâmina fio gume pá folha limbo barbatana nadadeira estabilizador pé de pato controle baliza