Meanings
plural Neptune's cups
- A large cup-shaped marine sponge (Cliona patera).
Synonyms: Neptune's cup sponge
Synonyms & antonyms
nounA large cup-shaped marine sponge (Cliona patera).
Cite this entry
Neptune's cup. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Neptune's%20cup
“Neptune's cup.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Neptune's%20cup. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “Neptune's cup,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Neptune's%20cup.
Source: Neptune's cup on Wiktionary, CC BY-SA 4.0.