spikemossPronunciation: /ˈspʌɪkmɒs/Entry from World dictionaryDefinition of spikemoss noun a chiefly tropical creeping clubmoss which has branching stems with hair-like spines on the leaf margins, small spore-bearing cones, and typically a mat-like growth. Genus Selaginella and family Selaginellaceae, class Lycopsida spikemoss in other Oxford dictionaries Definition of spikemoss in the British & World English dictionary