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Convex on one side, and concave on the other. The curves of the convex and concave sides may be alike or may be different. See Meniscus.

Convex on botConvex, a.

Convex on one side, and flat on the other; plano-convex.

Devexity. [Obs.] May (Lucan).

A bending downward; a sloping; incurvation downward; declivity. [R.] Davies (Wit's Pilgr.)

Plane or flat on one side, and convex on the other; as, a plano-convex lens. See Convex, and Lens.

Great advance in age. [Obs.]

d of tissue. Achromatic lens (Opt.), a lens composed usually of two separate lenses, a convex and concave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced by the one is corrected by other, and light emerges…

aclastic glass, a glass or phial, shaped like an inverted funnel, and with a very thin convex bottom. By sucking out a little air, the bottom springs into a concave form with a smart crack; and by breathing or blowing gently into the orifice, the bottom, with a like noise, springs into its former convex form.…

That which is analogous to, or corresponds with, some other thing. The vexatious tyranny of the individual despot meets its analogue in the insolent tyranny of the many. I. Taylor.

Trouble; vexation; also, physical pain or smart of a sore, etc. [Obs.] I made the experiment, setting the moxa where . . . the greatest anger and soreness still continued. Temple.

Troublesome; vexatious; rigorous. [Obs.] God had provided a severe and angry education to chastise the forwardness of a young spirit. Jer. Taylor.

A feeling of discomfort or vexation caused by what one dislikes; also, whatever causes such a feeling; as, to work annoy. Worse than Tantalus' is her annoy. Shak.

The act of annoying, or the state of being annoyed; molestation; vexation; annoy. A deep clay, giving much annoyance to passengers. Fuller. For the further annoyance and terror of any besieged place, they would throw into it dead bodies. Wilkins.

That annoys; molesting; vexatious. -- An*noy"ing*ly, adv.

crystalline lens, as after operations for cataract. The remedy is the use of powerful convex lenses. Dunglison.

A convex molding of rounded surface, generally from half to three quarters of a circle.

Bent; crooked; curved laterally, esp. with the convex side outward; as, a bandy leg.

To cry loudly, as a child from pain or vexation.

Weary; tired; fatigued; exhausted. [Colloq.] Quite beat, and very much vexed and disappointed. Dickens.