mountant noun 2adjective 1forms 3 noun2 •The medium used for mounting a slideBoth mountants can be placed on the same slide, with spores placed in each. — 2004 •(old-fashioned) The adhesive used to affix a photograph to a mountThe favourite professional mountant was, and to some extent still is, starch paste. — 1911 adjective1 •(no longer used) RisingHold up, you sluts, / Your aprons mountant — 1607 formsmountants · more mountant · most mountant