A red alga/seaweed, Porphyra umbilicalis (syn. Porphyra laciniata), eaten as a vegetable.
A type of seaweed, specifically porphyra vulgaris, that is similar in appearance or use to other seaweeds.
One who laves: a washer.
Where one laves, a washroom, particularly a lavatorium, the washing area in a monastery.
That which laves, particularly a washbasin.