euphotic

As a noun terms

is .

As an adjective euphotic is

describing that part of the near-surface ocean in which photosynthesis is possible.

As adjectives the difference between euphotic and euphoric

is that euphotic is describing that part of the near-surface ocean in which photosynthesis is possible while euphoric is feeling great well-being or elation or intense happiness; characterized by euphoria.

As a noun euphoric is

a drug that causes euphoria; a euphoriant.

As adjectives the difference between euphotic and euphonic

is that euphotic is describing that part of the near-surface ocean in which photosynthesis is possible while euphonic is characterized by euphony; harmonious.

As adjectives the difference between euphotic and photic

is that euphotic is describing that part of the near-surface ocean in which photosynthesis is possible while photic is of, related to, or irradiated by light; especially describing that part of the near-surface ocean is which photosynthesis is possible.

As a noun photosynthesis

is the process by which plants and other photoautotrophs generate carbohydrates and oxygen from carbon dioxide, water, and light energy.

As an adjective euphotic is

describing that part of the near-surface ocean in which photosynthesis is possible.

As a noun ocean

is one of the five large bodies of water separating the continents.

As a proper noun Ocean

is {{given name|female|from=English}} of modern usage.

As an adjective euphotic is

describing that part of the near-surface ocean in which photosynthesis is possible.