出典:Wiktionary
出典:『Wiktionary』 (2025/06/03 19:32 UTC 版)
From Ancient Greek πῑλίδιον (pīlídion, “little cap”), diminutive of πῖλος (pîlos), probably influenced by other formations in -idium, like miracidium, planidium, and coracidium.
pilidium (plural pilidia)