pla·nom·e·ter 
(plə-nŏmĭ-tər, plā-)
(plə-nŏmĭ-tər, plā-)n.
A flat metal plate for gauging the accuracy of a plane surface in precision metalworking. Also called surface plate.
pla·nome·try n.
- polychrome
- polychromic
- polychromophilia
- polychromous
- polychromy
- Polycleitus
- polyclinic
- Polyclitus
- polyclonal
- polyclonally
- polyconic projection
- polycyclic
- polycyclic aromatic hydrocarbon
- polycystic
- polycystic ovary syndrome
- polycythemia
- polydactyl
- polydactylism
- polydactyly
- polydentate
- polydipsia
- polydipsic
- polyelectrolyte
- polyembryonic
- polyembryony