Geometric pen

Pen Pen, n. [OE. penne, OF. penne, pene, F. penne, fr. L. penna.] 1. A feather. [Obs.] --Spenser. [1913 Webster]

2. A wing. [Obs.] --Milton. [1913 Webster]

3. An instrument used for writing with ink, formerly made of a reed, or of the quill of a goose or other bird, but now also of other materials, as of steel, gold, etc. Also, originally, a stylus or other instrument for scratching or graving. [1913 Webster]

Graven with an iron pen and lead in the rock. --Job xix. 24. [1913 Webster]

4. Fig.: A writer, or his style; as, he has a sharp pen. ``Those learned pens.'' --Fuller. [1913 Webster]

5. (Zo["o]l.) The internal shell of a squid. [1913 Webster]

6. [Etymol. uncertain.] (Zo["o]l.) A female swan. [Prov. Eng.] [1913 Webster]

{Bow pen}. See {Bow-pen}.

{Dotting pen}, a pen for drawing dotted lines.

{Drawing pen}, or {Ruling pen}, a pen for ruling lines having a pair of blades between which the ink is contained.

{Fountain pen}, {Geometric pen}. See under {Fountain}, and {Geometric}.

{Music pen}, a pen having five points for drawing the five lines of the staff.

{Pen and ink}, or {pen-and-ink}, executed or done with a pen and ink; as, a pen and ink sketch.

{Pen feather}. A pin feather. [Obs.]

{Pen name}. See under {Name}.

{Sea pen} (Zo["o]l.), a pennatula. [Usually written {sea-pen}.] [1913 Webster]