A primitive chordate animal characterized by a notochord extending into the head region.
From Greek 'kephale' (head) + Latin 'chorda' (string, cord). Describes the anatomical feature of a supporting cord extending toward the head.
Cephalochords are living fossils that help scientists understand how our own spine evolved—they're simple worm-like creatures that possess the same basic blueprint we do, making them evolutionary windows into the ancient past.
Complete word intelligence in one call. Free tier — 50 lookups/day.