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palp formula (s) (noun) (no pl)
The standard method of indicating the number of segments in the maxillary (second pair of jaws under the principal pair) and labial palps respectively: If the palp formula had six,four; it would mean six segments in the maxillary palp and four in the labial palp.

This entry is located in the following unit: Ant and Related Entomology Terms (page 15)