จุล(jun)
Meanings
1AdjectiveB1
tiny; minute; microscopic
Very small in size; microscopic.
Examples
เม็ดmétเม็ดmét1grain; bead; pellet2seed; kernel3tablet; pill4drop; raindrop5classifier: small round itemsฝุ่นfùnฝุ่นfùn1dust; fine dry particles2particulate matter (air pollution)พวกนี้pûuak néeพวกนี้pûuak née1these (after a noun)2these ones; these people/thingsมีmeeมีmee1[to] have; possess2there is/are; exist3[to] experience; undergoขนาดkà-nàatขนาดkà-nàat1size; dimension; magnitude2grade; level; scale3of ... size; of such a size4even; to the extent that5as; to the extent of6very; extremely (Northern Thai)จุลjunจุลjun1micro- (prefix)2tiny; minute; microscopicมากmâakมากmâak1very; extremely2many; numerous3much; a lot; greatlyจนjonจนjon1poor2until; up to3so ... that; to the point ofมองmongมองmong1[to] watch; observe2[to] view; regard; consider3[to] look atด้วยdûuayด้วยdûuay1with; together with2also; too; as well3by; by means of; using4because; since (formal/literary)5polite/softening sentence particle (formal)6because of; due toตาเปล่าdtaa bplàoตาเปล่าdtaa bplào1naked eye2unaided (optics)แทบtâepแทบtâep1almost; nearly2barely; hardly3virtually; practicallyไม่mâiไม่mâi1not (negator)2no (reply)เห็นhĕnเห็นhĕn1[to] see2[to] notice; [to] realize; [to] find (that)3[to] think; [to] be of the opinion4[to] consider; [to] regard as
These dust particles are of such micro size that they are barely visible to the naked eye.
2NounB1
micro- (prefix)
A prefix meaning very small or microscopic; used to form scientific and technical terms (e.g., จุลชีพจุลชีพjun-lá-chêepmicroorganism; microbe ‘microorganism’).
Examples
ครูkruuครูkruu1teacher2master; mentor (respectful)3teacher (classifier; formal)อธิบายà-tí-baaiอธิบายà-tí-baai1[to] interpret; expound2[to] explain; clarifyคำว่าkam wâaคำว่าkam wâathe word/term (introductory marker)จุลjunจุลjun1micro- (prefix)2tiny; minute; microscopicว่าwâaว่าwâa1[to] say; tell; say that2[to] think; consider; deem3that (clause marker)4about; regarding5[to] scold; reproach; criticizeเป็นbpenเป็นbpen1to be (identity/category/state)2to become3[to] know how; be able to (skill)4[to] be + set expressionsคำนำหน้าkam nam nâaคำนำหน้าkam nam nâa1personal title before a name2prefix (linguistics)ที่têeที่têe1place; spot; seat; space2that/which/who (relative marker)3at; in; to (before place/recipient)4when; the time that (time marker)5ordinal/degree marker6classifier: place/seat/slotหมายถึงmăai tĕungหมายถึงmăai tĕung1[to] mean; denote; refer to2[to] mean (to say); intend (one’s words)เล็กlékเล็กlék1small; little2younger; junior3minor; slightมากmâakมากmâak1very; extremely2many; numerous3much; a lot; greatlyเช่นchênเช่นchên1for example; such as2like; such as (formal)จุลชีพjun-lá-chêepจุลชีพjun-lá-chêepmicroorganism; microbe
The teacher explained that 'จุล' is a prefix meaning very small, like in 'จุลชีพ' (microorganism).