# equilateral

### Definitions:

• Having all sides or faces equal.
• A side exactly equal to others.
• A geometric figure having all sides equal.
• In <em>geometry</em>, having all the sides equal: as, an <em>equilateral</em> triangle.
• In <em>zoology</em>: Having the two sides equal: said of surfaces which can be divided into two parts of the same form by a longitudinal median line.
• Having all the sides equal.
• Having all the convolutions of the shell in one plane: said chiefly of foraminifers.
• A figure having all its sides equal.
• Having all the sides equal
• one whose axes are equal.
• one in which a transverse line drawn through the apex of the umbo bisects the valve, or divides it into two equal and symmetrical parts.
• applied to two figures, when every side of the one has its equal among the sides of the other.
• A side exactly corresponding, or equal, to others; also, a figure of equal sides.
• Referring to a <xref>polygon</xref> all of whose sides are of equal length. Not necessarily a <xref>regular polygon</xref> since the <xref>angles</xref> can still differ (a regular polygon would also be <xref>equiangular</xref>).
• An <xref>equilateral triangle</xref>
• a figure whose sides are all equal
• having all sides or faces equal