This is an interactive knowledge database for Multifunctional Bio-inspired Design (MBID) Ideation System, Multifunctional Bio-inspired Design (MBID) is a unique rapid ideation system for generating multifunctional and multiscale conceptual bio-inspired, designs. This system consists of five components:, . Abstraction of biological features and their functions: BIKAS, . A method for classification, mapping, and integration of biological features: DOMAIN INTEGRATED DESIGN (DID), . Parameters for selection of relevant biological features under convergent evolution: META-LEVEL DESIGN PARAMETERS, . An extension of DID and a model representation of the ideation system: EXPANDABLE DOMAIN INTEGRATED DESIGN (xDID) MODEL, . Generation of unique multifunctional bio-inspired conceptual designs: VERIFICATION, This web application provides an overview of the MBID ideation system and includes a link to Bio-inspired Knowledge Acquisition and, Simulacrum (BIKAS). Key features of BIKAS include:, . Representing the function exhibited by a biological feature as a combination of integrated structure and structural strategy., . Classifying biological features based on their characteristics into their respective geometric designations, called domains.