aspheric /ə- or ā-sferˈik/ or aspherical /-i-kəl/

1. Not spherical
2. (of a surface) not forming part of a sphere

• packmules
• pack or peel
• pack-rat
• pack-rats
• packs
• packsaddle
• packsaddles
• packsheet
• pack shot
• pack shots
• packstaff
• packstaffs
• packthread
• packthreads
• pack-train
• pack-trains
• pack-twine
• pack up
• packway
• packways
• paco
• pacos
• pact
• pacta
• paction