kelp
US
UK kelp n: (type of seaweed)
SC 大型褐藻 dà xíng hè zǎo
SC 大型海藻 dà xíng hè zǎo，dà xíng hǎi zǎo
The beach goers had difficulty swimming through the kelp.
kelp forest n: (area of dense seaweed)
SC 海藻森林
This type of fish is usually found in or around kelp forests.