n. (Bot.) A nonmotile gamete, found in certain lower algæ. [ Webster 1913 Suppl. ]

See Plani-. [ 1913 Webster ]

{ . [ L. planus. See Plane, a. ] Combining forms signifying flat, level, plane; as planifolious, planimetry, plano-concave. [ 1913 Webster ]

n. [ Gr. &unr_; to wander + -blast. ] (Zool.) Any free-swimming gonophore of a hydroid; a hydroid medusa. [ 1913 Webster ]

a. [ Plano- + concave. ] Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens. [ 1913 Webster ]

a. [ Plano- + conical. ] Plane or flat on one side, and conical on the other. Grew. [ 1913 Webster ]

a. [ Plano- + convex. ] Plane or flat on one side, and convex on the other; as, a plano-convex lens. See Convex, and Lens. [ 1913 Webster ]

n. [ Gr. &unr_; wandering + E. gamete. ] (Bot.) One of the motile ciliated gametes, or zoogametes, found in isogamous plants, as many green algæ (Chlorophyceæ). [ Webster 1913 Suppl. ]

a. [ Plano- + horizontal. ] Having a level horizontal surface or position. Lee. [ 1913 Webster ]

n. [ Plano- + -meter. Cf. Planimeter. ] An instrument for gauging or testing a plane surface. See Surface gauge, under Surface. [ 1913 Webster ]

n. (Mech.) The art or process of producing or gauging a plane surface. [ 1913 Webster ]

a. [ Plano- + orbicular. ] Plane or flat on one side, and spherical on the other. [ 1913 Webster ]

‖n. [ NL., fr. L. planus flat + orbis a circle. ] (Zool.) Any fresh-water air-breathing mollusk belonging to Planorbis and other allied genera, having shells of a discoidal form. [ 1913 Webster ]

a. [ Plano- + subulate. ] Smooth and awl-shaped. See Subulate. [ 1913 Webster ]