narrow+aperture
61Macrocypraea zebra — A shell of Macrocypraea zebra from Panama, anterior end towards the right Scientific classification Kingdom …
62Drupa morum — Drupa (Drupa) morum a shell of Drupa (Drupa) morum morum Scientific classification Kingdom: Animalia …
63Olivella biplicata — Scientific classification Kingdom: Animalia …
64Olivellidae — Olivella biplicata Scientific classification Kingdom: Animalia …
65diffraction — noun Physics the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge …
66slot — slot1 noun 1》 a long, narrow aperture or slit into which something may be fitted or inserted. 2》 an allotted place in an arrangement or scheme such as a broadcasting schedule. verb (slots, slotting, slotted) place or be placed into a slot. ↘Brit …
67chink — I. n. Opening, gap, crack, cranny, crevice, cleft, rift, fissure, narrow aperture. II. v. a., v. n. Jingle, clink, ring …
68diffract — diffraction ► NOUN Physics ▪ the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge. DERIVATIVES diffract verb diffractive adjective. ORIGIN Latin, from… …
69diffraction — ► NOUN Physics ▪ the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge. DERIVATIVES diffract verb diffractive adjective. ORIGIN Latin, from diffringere break …
70diffractive — diffraction ► NOUN Physics ▪ the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge. DERIVATIVES diffract verb diffractive adjective. ORIGIN Latin, from… …