Plymouth Rock

A granite boulder on which the Pilgrim Fathers landed from the Mayflower at Plymouth, Ma ., Dec. 11, 1620. [MAYFLOWER, THE.] Plym-outh-Işm, subst. [Eng. Plymouth; -ism.] The doctrines of the Plymouth Brethren (q. v.). Plym-outh-ite, s. [Eng. Plymouth; ite.] A member of the sect of Plymouth Brethren. Plyn-lim-môn, s. [See def.] pneumatic-despatch, s . Despatch of letters, parcels, ., by means of an artificial vacuum in front and atmospheric pre ure in the rear. pneumatic-elevator, s. A hoist in which compre ed air is the agent for lifting. pneumatic-filament, s. Zool . ( pl .): Numerous slender proce es containing air connected with the distal end of the pneuma to cyst in Velella and Porpita. pneumatic-fountain, s. [FOUNTAIN, (3).]