Algal

Part of speech: adjective

Pronunciation: /ˈælɡəl/

Definitions

1. Pertaining to substances or materials derived from simple photosynthetic organisms that thrive in water environments
2. Relating to the characteristics or phenomena associated with the proliferation of aquatic organisms within ecosystems
3. Having to do with the types of organisms typically found in aquatic settings that possess chlorophyll and can photosynthesize

Etymology: "Algal" is a straightforward formation: it is the English adjective from "alga," the Latin word for seaweed or a water plant, with the suffix "-al" attached. That suffix descends from the Latin "-ālis," which marked a relationship to something, so "algal" simply means "relating to algae." The noun "alga" itself was borrowed directly from Latin into English, so the root has not changed much since classical times. The Latin word has an ancient Indo-European ancestry, traced back to a root meaning something like "to be wet" or "dampness," which is fitting for organisms that live in water. The suffix took a longer route, reaching English through Old French and Middle English before settling into its current form.

Synonyms: seaweed, phytoplankton, microalgal