X

Cross Mark

Unicode: 274C

Cross Mark Button

Unicode: 274E

Multiplication Sign

Unicode: 2716

Negative cross

Illustration of negative cross

Oyster disease transmission

Illustration of Oyster disease transmission

Potentially negative

Illustration of potentially negative cross

Process; (x = element) in

General illustration of any element coming in

Process; (x = element) out

General illustration of an any element outgoing

Response, Bioassay; high; (x = symbol)

Illustration of a high response (any element) in a bioassay

Response, Bioassay; low; (x = element)

Illustration of a low bioassay response (any element)

UCS M1414 X 8

UCS M142 X 8

UCS M2814 X 4