1. Denoting or resembling a roundworm, especially Ascaris lumbricoides. SYN: lumbrical, lumbricus (1). SEE ALSO: scolecoid (2), vermiform. 2. Obsolete common name for Ascaris lumbricoides. [L. lumbricus, earthworm, + G. eidos, resemblance]
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lum·bri·coid (lumґbrĭ-koid) [lumbricus + -oid] pertaining to or resembling an earthworm; said especially of Ascaris lumbricoides; called also lumbrical.Medical dictionary. 2011.