GENERAL SYMBOLS
℥ Ounce

O Pint

[lb] Pound

℞ Recipe (L. take)

M Misce (L. mix)

āā Of each

A, Å, AU angström unit

C-1, C-2, etc. Complement

c, cum (L. with)

Δ Change; heat

E₀ Electroaffinity

F₁ First filial generation

F₂ Second filial generation

mμ Millimicron, nanometer

μg Microgram

mEq Milliequivalent

mg Milligram

mg% Milligrams percent; milligrams per 100 ml

n Subscripted n indicates the number of the molecules can vary from two to greater

Qo₂ Oxygen consumption

m- Meta-

o- Ortho-

p- Para-

After

Po₂ Partial pressure of oxygen

Pco₂ Partial pressure of carbon dioxide

Without

, ss [L. semis]. One half

μm Micrometer

μ Micron (former term for micrometer)

μμ Micromicron

+ Plus; excess; acid reaction; positive

− Minus; deficiency; alkaline reaction; negative

± Plus or minus; either positive or negative; indefinite

# Number; following a number, pounds

÷ Divided by

× Multiplied by; magnification

/ Divided by

= Equals

≈ Approximately equal

> Greater than; from which is derived

< Less than; derived from

[notlt] Not less than

[notgt] Not greater than

≤ Equal to or less than

≥ Equal to or greater than

≠ Not equal to

[sqrt] Root; square root; radical

[sqrt] ² Square root

[sqrt] ³ Cube root

∞ Infinity

∶ Ratio; “is to”

∶∶ Equality between ratios, “as”

∴ Therefore

° Degree

% Percent

π 3.1416—ratio of circumference of a circle to its diameter

□, ♂ Male

○, ♀ Female

[rlarr] Denotes a reversible reaction

↑ Increase

↓ Decrease